68745215 has 16 divisors (see below), whose sum is σ = 102850560. Its totient is φ = 42853920.

The previous prime is 68745203. The next prime is 68745221. The reversal of 68745215 is 51254786.

It is not a de Polignac number, because 68745215 - 2⁴ = 68745199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88895 + ... + 89664.

It is an arithmetic number, because the mean of its divisors is an integer number (6428160).

Almost surely, 2^68745215 is an apocalyptic number.

68745215 is a deficient number, since it is larger than the sum of its proper divisors (34105345).

68745215 is a wasteful number, since it uses less digits than its factorization.

68745215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178582.

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

The square root of 68745215 is about 8291.2734245109. The cubic root of 68745215 is about 409.6511309531.

The spelling of 68745215 in words is "sixty-eight million, seven hundred forty-five thousand, two hundred fifteen".