68151365 has 4 divisors (see below), whose sum is σ = 81781644. Its totient is φ = 54521088.

The previous prime is 68151329. The next prime is 68151371. The reversal of 68151365 is 56315186.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48455521 + 19695844 = 6961^2 + 4438^2 .

It is a cyclic number.

It is not a de Polignac number, because 68151365 - 2⁶ = 68151301 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6815132 + ... + 6815141.

It is an arithmetic number, because the mean of its divisors is an integer number (20445411).

Almost surely, 2^68151365 is an apocalyptic number.

It is an amenable number.

68151365 is a deficient number, since it is larger than the sum of its proper divisors (13630279).

68151365 is a wasteful number, since it uses less digits than its factorization.

68151365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13630278.

The product of its digits is 21600, while the sum is 35.

The square root of 68151365 is about 8255.3840007597. The cubic root of 68151365 is about 408.4681385630.

The spelling of 68151365 in words is "sixty-eight million, one hundred fifty-one thousand, three hundred sixty-five".