68236161 has 16 divisors (see below), whose sum is σ = 104991744. Its totient is φ = 38612304.

The previous prime is 68236153. The next prime is 68236169. The reversal of 68236161 is 16163286.

It is an interprime number because it is at equal distance from previous prime (68236153) and next prime (68236169).

It is not a de Polignac number, because 68236161 - 2³ = 68236153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68236169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13611 + ... + 17936.

It is an arithmetic number, because the mean of its divisors is an integer number (6561984).

Almost surely, 2^68236161 is an apocalyptic number.

It is an amenable number.

68236161 is a deficient number, since it is larger than the sum of its proper divisors (36755583).

68236161 is a wasteful number, since it uses less digits than its factorization.

68236161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31660.

The product of its digits is 10368, while the sum is 33.

The square root of 68236161 is about 8260.5182040838. The cubic root of 68236161 is about 408.6374778416.

The spelling of 68236161 in words is "sixty-eight million, two hundred thirty-six thousand, one hundred sixty-one".