161139414 has 16 divisors (see below), whose sum is σ = 322403328. Its totient is φ = 53692392.

The previous prime is 161139409. The next prime is 161139421. The reversal of 161139414 is 414931161.

It is a congruent number.

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, 27099 + ... + 32505.

It is an arithmetic number, because the mean of its divisors is an integer number (20150208).

Almost surely, 2^161139414 is an apocalyptic number.

161139414 is an abundant number, since it is smaller than the sum of its proper divisors (161263914).

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

161139414 is a wasteful number, since it uses less digits than its factorization.

161139414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10379.

The product of its digits is 2592, while the sum is 30.

The square root of 161139414 is about 12694.0700328933. The cubic root of 161139414 is about 544.1691619069.

The spelling of 161139414 in words is "one hundred sixty-one million, one hundred thirty-nine thousand, four hundred fourteen".