161474154 has 64 divisors (see below), whose sum is σ = 342582912. Its totient is φ = 50688000.

The previous prime is 161474149. The next prime is 161474161. The reversal of 161474154 is 451474161.

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 31 ways as a sum of consecutive naturals, for example, 1598704 + ... + 1598804.

It is an arithmetic number, because the mean of its divisors is an integer number (5352858).

Almost surely, 2^161474154 is an apocalyptic number.

161474154 is an abundant number, since it is smaller than the sum of its proper divisors (181108758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161474154 is a wasteful number, since it uses less digits than its factorization.

161474154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 13440, while the sum is 33.

The square root of 161474154 is about 12707.2480891812. The cubic root of 161474154 is about 544.5457078925.

It can be divided in two parts, 16147 and 4154, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 161474154 in words is "one hundred sixty-one million, four hundred seventy-four thousand, one hundred fifty-four".