161852630 has 16 divisors (see below), whose sum is σ = 291582720. Its totient is φ = 64685952.

The previous prime is 161852617. The next prime is 161852653. The reversal of 161852630 is 36258161.

It is a happy number.

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, 6731 + ... + 19209.

It is an arithmetic number, because the mean of its divisors is an integer number (18223920).

Almost surely, 2^161852630 is an apocalyptic number.

161852630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161852630 is a deficient number, since it is larger than the sum of its proper divisors (129730090).

161852630 is a wasteful number, since it uses less digits than its factorization.

161852630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13783.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 161852630 is about 12722.1315038008. The cubic root of 161852630 is about 544.9708258097.

The spelling of 161852630 in words is "one hundred sixty-one million, eight hundred fifty-two thousand, six hundred thirty".