161407052 has 12 divisors (see below), whose sum is σ = 297328920. Its totient is φ = 76455936.

The previous prime is 161407019. The next prime is 161407063. The reversal of 161407052 is 250704161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061813 + ... + 1061964.

It is an arithmetic number, because the mean of its divisors is an integer number (24777410).

Almost surely, 2^161407052 is an apocalyptic number.

It is an amenable number.

161407052 is a deficient number, since it is larger than the sum of its proper divisors (135921868).

161407052 is a wasteful number, since it uses less digits than its factorization.

161407052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123800 (or 2123798 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 161407052 is about 12704.6075106632. The cubic root of 161407052 is about 544.4702671942.

The spelling of 161407052 in words is "one hundred sixty-one million, four hundred seven thousand, fifty-two".