13157443 has 8 divisors (see below), whose sum is σ = 14915600. Its totient is φ = 11505888.

The previous prime is 13157437. The next prime is 13157453. The reversal of 13157443 is 34475131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13157443 is a prime.

It is a super-3 number, since 3×13157443³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13157453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26388 + ... + 26881.

It is an arithmetic number, because the mean of its divisors is an integer number (1864450).

Almost surely, 2^13157443 is an apocalyptic number.

13157443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13157443 is a deficient number, since it is larger than the sum of its proper divisors (1758157).

13157443 is a wasteful number, since it uses less digits than its factorization.

13157443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53301.

The product of its digits is 5040, while the sum is 28.

The square root of 13157443 is about 3627.3189823891. The cubic root of 13157443 is about 236.0788961056.

The spelling of 13157443 in words is "thirteen million, one hundred fifty-seven thousand, four hundred forty-three".