142393552 has 80 divisors (see below), whose sum is σ = 331978752. Its totient is φ = 57847680.

The previous prime is 142393541. The next prime is 142393577. The reversal of 142393552 is 255393241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430027 + ... + 430357.

Almost surely, 2^142393552 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 142393552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165989376).

142393552 is an abundant number, since it is smaller than the sum of its proper divisors (189585200).

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

142393552 is a wasteful number, since it uses less digits than its factorization.

142393552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 142393552 is about 11932.8769372687. The cubic root of 142393552 is about 522.1918722331.

The spelling of 142393552 in words is "one hundred forty-two million, three hundred ninety-three thousand, five hundred fifty-two".