161515214 has 16 divisors (see below), whose sum is σ = 281577600. Its totient is φ = 68047224.

The previous prime is 161515183. The next prime is 161515217. The reversal of 161515214 is 412515161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161515217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96944 + ... + 98595.

It is an arithmetic number, because the mean of its divisors is an integer number (17598600).

Almost surely, 2^161515214 is an apocalyptic number.

161515214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161515214 is a deficient number, since it is larger than the sum of its proper divisors (120062386).

161515214 is a wasteful number, since it uses less digits than its factorization.

161515214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195607.

The product of its digits is 1200, while the sum is 26.

The square root of 161515214 is about 12708.8635998660. The cubic root of 161515214 is about 544.5918600708.

The spelling of 161515214 in words is "one hundred sixty-one million, five hundred fifteen thousand, two hundred fourteen".