161359418 has 24 divisors (see below), whose sum is σ = 267053760. Its totient is φ = 72518000.

The previous prime is 161359409. The next prime is 161359423. The reversal of 161359418 is 814953161.

161359418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224063 + ... + 224781.

It is an arithmetic number, because the mean of its divisors is an integer number (11127240).

Almost surely, 2^161359418 is an apocalyptic number.

161359418 is a deficient number, since it is larger than the sum of its proper divisors (105694342).

161359418 is a wasteful number, since it uses less digits than its factorization.

161359418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 833 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 161359418 is about 12702.7326981244. The cubic root of 161359418 is about 544.4167010745.

The spelling of 161359418 in words is "one hundred sixty-one million, three hundred fifty-nine thousand, four hundred eighteen".