161137052 has 24 divisors (see below), whose sum is σ = 289451232. Its totient is φ = 78444800.

The previous prime is 161137049. The next prime is 161137069. The reversal of 161137052 is 250731161.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 155777 + ... + 156807.

It is an arithmetic number, because the mean of its divisors is an integer number (12060468).

Almost surely, 2^161137052 is an apocalyptic number.

It is an amenable number.

161137052 is a deficient number, since it is larger than the sum of its proper divisors (128314180).

161137052 is a wasteful number, since it uses less digits than its factorization.

161137052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 161137052 is about 12693.9769969856. The cubic root of 161137052 is about 544.1665030626.

The spelling of 161137052 in words is "one hundred sixty-one million, one hundred thirty-seven thousand, fifty-two".