142531264 has 56 divisors (see below), whose sum is σ = 301203360. Its totient is φ = 66686976.

The previous prime is 142531241. The next prime is 142531271. The reversal of 142531264 is 462135241.

142531264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142531264² = 40630322434875392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292429 + ... + 292915.

Almost surely, 2^142531264 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 142531264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150601680).

142531264 is an abundant number, since it is smaller than the sum of its proper divisors (158672096).

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

142531264 is a wasteful number, since it uses less digits than its factorization.

142531264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 775 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 142531264 is about 11938.6458193549. The cubic root of 142531264 is about 522.3601591533.

The spelling of 142531264 in words is "one hundred forty-two million, five hundred thirty-one thousand, two hundred sixty-four".