13157198 has 8 divisors (see below), whose sum is σ = 19761840. Its totient is φ = 6569920.

The previous prime is 13157191. The next prime is 13157231. The reversal of 13157198 is 89175131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13157198² = 346223718422408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157191) 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 in 3 ways as a sum of consecutive naturals, for example, 2243 + ... + 5598.

It is an arithmetic number, because the mean of its divisors is an integer number (2470230).

Almost surely, 2^13157198 is an apocalyptic number.

13157198 is a deficient number, since it is larger than the sum of its proper divisors (6604642).

13157198 is an equidigital number, since it uses as much as digits as its factorization.

13157198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8682.

The product of its digits is 7560, while the sum is 35.

The square root of 13157198 is about 3627.2852107327. The cubic root of 13157198 is about 236.0774307832.

The spelling of 13157198 in words is "thirteen million, one hundred fifty-seven thousand, one hundred ninety-eight".