68157532 has 12 divisors (see below), whose sum is σ = 120332016. Its totient is φ = 33776960.

The previous prime is 68157493. The next prime is 68157553. The reversal of 68157532 is 23575186.

It is a junction number, because it is equal to n+sod(n) for n = 68157491 and 68157500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74944 + ... + 75847.

It is an arithmetic number, because the mean of its divisors is an integer number (10027668).

Almost surely, 2^68157532 is an apocalyptic number.

It is an amenable number.

68157532 is a deficient number, since it is larger than the sum of its proper divisors (52174484).

68157532 is a wasteful number, since it uses less digits than its factorization.

68157532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150908 (or 150906 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 68157532 is about 8255.7575061287. The cubic root of 68157532 is about 408.4804589180.

The spelling of 68157532 in words is "sixty-eight million, one hundred fifty-seven thousand, five hundred thirty-two".