142539264 has 200 divisors, whose sum is σ = 487209888. Its totient is φ = 40642560.

The previous prime is 142539259. The next prime is 142539283. The reversal of 142539264 is 462935241.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 290059 + ... + 290549.

Almost surely, 2^142539264 is an apocalyptic number.

142539264 is a gapful number since it is divisible by the number (14) 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 142539264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243604944).

142539264 is an abundant number, since it is smaller than the sum of its proper divisors (344670624).

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

142539264 is an frugal number, since it uses more digits than its factorization.

142539264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 503 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 142539264 is about 11938.9808610283. The cubic root of 142539264 is about 522.3699319872.

The spelling of 142539264 in words is "one hundred forty-two million, five hundred thirty-nine thousand, two hundred sixty-four".