151081161 has 48 divisors (see below), whose sum is σ = 257370048. Its totient is φ = 77952000.

The previous prime is 151081157. The next prime is 151081169. The reversal of 151081161 is 161180151.

It is a happy number.

It is not a de Polignac number, because 151081161 - 2² = 151081157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151081169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 376561 + ... + 376961.

It is an arithmetic number, because the mean of its divisors is an integer number (5361876).

Almost surely, 2^151081161 is an apocalyptic number.

151081161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

151081161 is a deficient number, since it is larger than the sum of its proper divisors (106288887).

151081161 is a wasteful number, since it uses less digits than its factorization.

151081161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 24.

The square root of 151081161 is about 12291.5076780678. The cubic root of 151081161 is about 532.6027908863.

The spelling of 151081161 in words is "one hundred fifty-one million, eighty-one thousand, one hundred sixty-one".