161151914 has 24 divisors (see below), whose sum is σ = 303661344. Its totient is φ = 62785800.

The previous prime is 161151889. The next prime is 161151923. The reversal of 161151914 is 419151161.

161151914 = 477² + 478² + ... + 839².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45872 + ... + 49259.

It is an arithmetic number, because the mean of its divisors is an integer number (12652556).

Almost surely, 2^161151914 is an apocalyptic number.

161151914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161151914 is a deficient number, since it is larger than the sum of its proper divisors (142509430).

161151914 is a wasteful number, since it uses less digits than its factorization.

161151914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95162 (or 95151 counting only the distinct ones).

The product of its digits is 1080, while the sum is 29.

The square root of 161151914 is about 12694.5623792236. The cubic root of 161151914 is about 544.1832324116.

The spelling of 161151914 in words is "one hundred sixty-one million, one hundred fifty-one thousand, nine hundred fourteen".