68157452 has 12 divisors (see below), whose sum is σ = 130118856. Its totient is φ = 30980640.

The previous prime is 68157433. The next prime is 68157461. The reversal of 68157452 is 25475186.

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, 774473 + ... + 774560.

It is an arithmetic number, because the mean of its divisors is an integer number (10843238).

Almost surely, 2^68157452 is an apocalyptic number.

It is an amenable number.

68157452 is a deficient number, since it is larger than the sum of its proper divisors (61961404).

68157452 is a wasteful number, since it uses less digits than its factorization.

68157452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549048 (or 1549046 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 68157452 is about 8255.7526610237. The cubic root of 68157452 is about 408.4802990998.

The spelling of 68157452 in words is "sixty-eight million, one hundred fifty-seven thousand, four hundred fifty-two".