13190312 has 8 divisors (see below), whose sum is σ = 24731850. Its totient is φ = 6595152.

The previous prime is 13190311. The next prime is 13190321. The reversal of 13190312 is 21309131.

It can be written as a sum of positive squares in only one way, i.e., 13147876 + 42436 = 3626^2 + 206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13190311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824387 + ... + 824402.

Almost surely, 2^13190312 is an apocalyptic number.

It is an amenable number.

13190312 is a deficient number, since it is larger than the sum of its proper divisors (11541538).

13190312 is a wasteful number, since it uses less digits than its factorization.

13190312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648795 (or 1648791 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 13190312 is about 3631.8469130733. The cubic root of 13190312 is about 236.2753178731.

Adding to 13190312 its reverse (21309131), we get a palindrome (34499443).

The spelling of 13190312 in words is "thirteen million, one hundred ninety thousand, three hundred twelve".