523901142 has 16 divisors (see below), whose sum is σ = 1164224880. Its totient is φ = 174633696.

The previous prime is 523901141. The next prime is 523901143. The reversal of 523901142 is 241109325.

523901142 is a `hidden beast` number, since 523 + 90 + 11 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (523901141) and next prime (523901143).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523901141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4850883 + ... + 4850990.

It is an arithmetic number, because the mean of its divisors is an integer number (72764055).

Almost surely, 2^523901142 is an apocalyptic number.

523901142 is an abundant number, since it is smaller than the sum of its proper divisors (640323738).

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

523901142 is a wasteful number, since it uses less digits than its factorization.

523901142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701884 (or 9701878 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 523901142 is about 22888.8868667745. The cubic root of 523901142 is about 806.1510952770.

The spelling of 523901142 in words is "five hundred twenty-three million, nine hundred one thousand, one hundred forty-two".