68275161 has 12 divisors (see below), whose sum is σ = 100718592. Its totient is φ = 44548056.

The previous prime is 68275157. The next prime is 68275199. The reversal of 68275161 is 16157286.

It is not a de Polignac number, because 68275161 - 2² = 68275157 is a prime.

It is a super-2 number, since 2×68275161² = 9322995219151842, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68275121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80281 + ... + 81126.

It is an arithmetic number, because the mean of its divisors is an integer number (8393216).

Almost surely, 2^68275161 is an apocalyptic number.

It is an amenable number.

68275161 is a deficient number, since it is larger than the sum of its proper divisors (32443431).

68275161 is a wasteful number, since it uses less digits than its factorization.

68275161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161460 (or 161457 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 68275161 is about 8262.8784936002. The cubic root of 68275161 is about 408.7153145104.

The spelling of 68275161 in words is "sixty-eight million, two hundred seventy-five thousand, one hundred sixty-one".