1425134520 has 256 divisors, whose sum is σ = 5040000000. Its totient is φ = 357198336.

The previous prime is 1425134419. The next prime is 1425134563. The reversal of 1425134520 is 254315241.

1425134520 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 134 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4083306 + ... + 4083654.

It is an arithmetic number, because the mean of its divisors is an integer number (19687500).

Almost surely, 2^1425134520 is an apocalyptic number.

1425134520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425134520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520000000).

1425134520 is an abundant number, since it is smaller than the sum of its proper divisors (3614865480).

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

1425134520 is a wasteful number, since it uses less digits than its factorization.

1425134520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1425134520 is about 37750.9538952329. The cubic root of 1425134520 is about 1125.3439659337.

Adding to 1425134520 its reverse (254315241), we get a palindrome (1679449761).

The spelling of 1425134520 in words is "one billion, four hundred twenty-five million, one hundred thirty-four thousand, five hundred twenty".