13157270 has 32 divisors (see below), whose sum is σ = 27349056. Its totient is φ = 4464000.

The previous prime is 13157267. The next prime is 13157293. The reversal of 13157270 is 7275131.

It is a super-2 number, since 2×13157270² = 346227507705800, which contains 22 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 15 ways as a sum of consecutive naturals, for example, 6140 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (854658).

Almost surely, 2^13157270 is an apocalyptic number.

13157270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13157270 is an abundant number, since it is smaller than the sum of its proper divisors (14191786).

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

13157270 is a wasteful number, since it uses less digits than its factorization.

13157270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 13157270 is about 3627.2951354970. The cubic root of 13157270 is about 236.0778614105.

The spelling of 13157270 in words is "thirteen million, one hundred fifty-seven thousand, two hundred seventy".