68253187 has 6 divisors (see below), whose sum is σ = 72034908. Its totient is φ = 64660572.

The previous prime is 68253179. The next prime is 68253191. The reversal of 68253187 is 78135286.

It is not a de Polignac number, because 68253187 - 2³ = 68253179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68253287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 94173 + ... + 94894.

It is an arithmetic number, because the mean of its divisors is an integer number (12005818).

Almost surely, 2^68253187 is an apocalyptic number.

68253187 is a deficient number, since it is larger than the sum of its proper divisors (3781721).

68253187 is a wasteful number, since it uses less digits than its factorization.

68253187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189105 (or 189086 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 68253187 is about 8261.5487046921. The cubic root of 68253187 is about 408.6714621837.

The spelling of 68253187 in words is "sixty-eight million, two hundred fifty-three thousand, one hundred eighty-seven".