161313196 has 24 divisors (see below), whose sum is σ = 318583440. Its totient is φ = 70795200.

The previous prime is 161313193. The next prime is 161313203. The reversal of 161313196 is 691313161.

161313196 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (161313193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61935 + ... + 64486.

It is an arithmetic number, because the mean of its divisors is an integer number (13274310).

Almost surely, 2^161313196 is an apocalyptic number.

It is an amenable number.

161313196 is a deficient number, since it is larger than the sum of its proper divisors (157270244).

161313196 is a wasteful number, since it uses less digits than its factorization.

161313196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126465 (or 126463 counting only the distinct ones).

The product of its digits is 2916, while the sum is 31.

The square root of 161313196 is about 12700.9131955147. The cubic root of 161313196 is about 544.3647127199.

The spelling of 161313196 in words is "one hundred sixty-one million, three hundred thirteen thousand, one hundred ninety-six".