31130196 has 24 divisors (see below), whose sum is σ = 76910400. Its totient is φ = 9766272.

The previous prime is 31130171. The next prime is 31130221. The reversal of 31130196 is 69103113.

It is an interprime number because it is at equal distance from previous prime (31130171) and next prime (31130221).

It is a super-3 number, since 3×31130196³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76096 + ... + 76503.

It is an arithmetic number, because the mean of its divisors is an integer number (3204600).

Almost surely, 2^31130196 is an apocalyptic number.

It is an amenable number.

31130196 is an abundant number, since it is smaller than the sum of its proper divisors (45780204).

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

31130196 is a wasteful number, since it uses less digits than its factorization.

31130196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152623 (or 152621 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 31130196 is about 5579.4440583270. Note that the first 3 decimals coincide. The cubic root of 31130196 is about 314.5772307789.

The spelling of 31130196 in words is "thirty-one million, one hundred thirty thousand, one hundred ninety-six".