13157043 has 4 divisors (see below), whose sum is σ = 17542728. Its totient is φ = 8771360.

The previous prime is 13157033. The next prime is 13157087. The reversal of 13157043 is 34075131.

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

It is a cyclic number.

It is not a de Polignac number, because 13157043 - 2¹⁰ = 13156019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13157033) 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, 2192838 + ... + 2192843.

It is an arithmetic number, because the mean of its divisors is an integer number (4385682).

Almost surely, 2^13157043 is an apocalyptic number.

13157043 is a deficient number, since it is larger than the sum of its proper divisors (4385685).

13157043 is an equidigital number, since it uses as much as digits as its factorization.

13157043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385684.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 13157043 is about 3627.2638448285. The cubic root of 13157043 is about 236.0765037331.

The spelling of 13157043 in words is "thirteen million, one hundred fifty-seven thousand, forty-three".