161550354 has 48 divisors (see below), whose sum is σ = 397973088. Its totient is φ = 43440768.

The previous prime is 161550353. The next prime is 161550391. The reversal of 161550354 is 453055161.

It is not an unprimeable number, because it can be changed into a prime (161550353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11164 + ... + 21159.

It is an arithmetic number, because the mean of its divisors is an integer number (8291106).

Almost surely, 2^161550354 is an apocalyptic number.

161550354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161550354 is an abundant number, since it is smaller than the sum of its proper divisors (236422734).

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

161550354 is a wasteful number, since it uses less digits than its factorization.

161550354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32359 (or 32352 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 161550354 is about 12710.2460243695. The cubic root of 161550354 is about 544.6313518517.

The spelling of 161550354 in words is "one hundred sixty-one million, five hundred fifty thousand, three hundred fifty-four".