68153272 has 32 divisors (see below), whose sum is σ = 147607920. Its totient is φ = 29155840.

The previous prime is 68153257. The next prime is 68153299. The reversal of 68153272 is 27235186.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 21283 + ... + 24274.

Almost surely, 2^68153272 is an apocalyptic number.

It is an amenable number.

68153272 is an abundant number, since it is smaller than the sum of its proper divisors (79454648).

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

68153272 is a wasteful number, since it uses less digits than its factorization.

68153272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45591 (or 45587 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 68153272 is about 8255.4995003331. The cubic root of 68153272 is about 408.4719484230.

The spelling of 68153272 in words is "sixty-eight million, one hundred fifty-three thousand, two hundred seventy-two".