161123370 has 16 divisors (see below), whose sum is σ = 386696160. Its totient is φ = 42966224.

The previous prime is 161123359. The next prime is 161123429. The reversal of 161123370 is 73321161.

It is a self number, because there is not a number n which added to its sum of digits gives 161123370.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2685360 + ... + 2685419.

It is an arithmetic number, because the mean of its divisors is an integer number (24168510).

Almost surely, 2^161123370 is an apocalyptic number.

161123370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161123370 is an abundant number, since it is smaller than the sum of its proper divisors (225572790).

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

161123370 is a wasteful number, since it uses less digits than its factorization.

161123370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370789.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 161123370 is about 12693.4380685455. The cubic root of 161123370 is about 544.1511010663.

The spelling of 161123370 in words is "one hundred sixty-one million, one hundred twenty-three thousand, three hundred seventy".