1425039156 has 60 divisors (see below), whose sum is σ = 3733084740. Its totient is φ = 474024960.

The previous prime is 1425039151. The next prime is 1425039157. The reversal of 1425039156 is 6519305241.

1425039156 is a `hidden beast` number, since 14 + 2 + 503 + 91 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 516016656 + 909022500 = 22716^2 + 30150^2 .

It is a super-2 number, since 2×1425039156² = 4061473192266384672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1425039156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425039151) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 160596 + ... + 169236.

It is an arithmetic number, because the mean of its divisors is an integer number (62218079).

Almost surely, 2^1425039156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425039156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866542370).

1425039156 is an abundant number, since it is smaller than the sum of its proper divisors (2308045584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1425039156 is a wasteful number, since it uses less digits than its factorization.

1425039156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9166 (or 9155 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1425039156 is about 37749.6908066808. The cubic root of 1425039156 is about 1125.3188642809.

The spelling of 1425039156 in words is "one billion, four hundred twenty-five million, thirty-nine thousand, one hundred fifty-six".