142071426 has 48 divisors (see below), whose sum is σ = 356773248. Its totient is φ = 40017600.

The previous prime is 142071421. The next prime is 142071439. The reversal of 142071426 is 624170241.

142071426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142071426.

It is not an unprimeable number, because it can be changed into a prime (142071421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006 + ... + 16886.

It is an arithmetic number, because the mean of its divisors is an integer number (7432776).

Almost surely, 2^142071426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142071426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178386624).

142071426 is an abundant number, since it is smaller than the sum of its proper divisors (214701822).

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

142071426 is a wasteful number, since it uses less digits than its factorization.

142071426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15967 (or 15964 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 142071426 is about 11919.3718794238. The cubic root of 142071426 is about 521.7978033998.

The spelling of 142071426 in words is "one hundred forty-two million, seventy-one thousand, four hundred twenty-six".