13157498 has 4 divisors (see below), whose sum is σ = 19736250. Its totient is φ = 6578748.

The previous prime is 13157497. The next prime is 13157537. The reversal of 13157498 is 89475131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10975969 + 2181529 = 3313^2 + 1477^2 .

It is not an unprimeable number, because it can be changed into a prime (13157497) by changing a digit.

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 as a sum of consecutive naturals, namely, 3289373 + ... + 3289376.

Almost surely, 2^13157498 is an apocalyptic number.

13157498 is a deficient number, since it is larger than the sum of its proper divisors (6578752).

13157498 is an equidigital number, since it uses as much as digits as its factorization.

13157498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6578751.

The product of its digits is 30240, while the sum is 38.

The square root of 13157498 is about 3627.3265637381. The cubic root of 13157498 is about 236.0792250530.

The spelling of 13157498 in words is "thirteen million, one hundred fifty-seven thousand, four hundred ninety-eight".