161137108 has 48 divisors (see below), whose sum is σ = 320060160. Its totient is φ = 70313600.

The previous prime is 161137091. The next prime is 161137121. The reversal of 161137108 is 801731161.

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 15 ways as a sum of consecutive naturals, for example, 373653 + ... + 374083.

It is an arithmetic number, because the mean of its divisors is an integer number (6667920).

Almost surely, 2^161137108 is an apocalyptic number.

It is an amenable number.

161137108 is a deficient number, since it is larger than the sum of its proper divisors (158923052).

161137108 is a wasteful number, since it uses less digits than its factorization.

161137108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 161137108 is about 12693.9792027559. The cubic root of 161137108 is about 544.1665661007.

Adding to 161137108 its reverse (801731161), we get a palindrome (962868269).

The spelling of 161137108 in words is "one hundred sixty-one million, one hundred thirty-seven thousand, one hundred eight".