68214155 has 16 divisors (see below), whose sum is σ = 83977344. Its totient is φ = 53168640.

The previous prime is 68214143. The next prime is 68214163. The reversal of 68214155 is 55141286.

It is not a de Polignac number, because 68214155 - 2²⁴ = 51436939 is a prime.

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, 65519 + ... + 66551.

It is an arithmetic number, because the mean of its divisors is an integer number (5248584).

Almost surely, 2^68214155 is an apocalyptic number.

68214155 is a deficient number, since it is larger than the sum of its proper divisors (15763189).

68214155 is a wasteful number, since it uses less digits than its factorization.

68214155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366.

The product of its digits is 9600, while the sum is 32.

The square root of 68214155 is about 8259.1860979155. The cubic root of 68214155 is about 408.5935449129.

The spelling of 68214155 in words is "sixty-eight million, two hundred fourteen thousand, one hundred fifty-five".