31160196 has 72 divisors (see below), whose sum is σ = 81454464. Its totient is φ = 10039680.

The previous prime is 31160189. The next prime is 31160231. The reversal of 31160196 is 69106113.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186505 + ... + 186671.

It is an arithmetic number, because the mean of its divisors is an integer number (1131312).

Almost surely, 2^31160196 is an apocalyptic number.

31160196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31160196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40727232).

31160196 is an abundant number, since it is smaller than the sum of its proper divisors (50294268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31160196 is a wasteful number, since it uses less digits than its factorization.

31160196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 31160196 is about 5582.1318508255. The cubic root of 31160196 is about 314.6782504553.

The spelling of 31160196 in words is "thirty-one million, one hundred sixty thousand, one hundred ninety-six".