13156061 has 4 divisors (see below), whose sum is σ = 13218624. Its totient is φ = 13093500.

The previous prime is 13156043. The next prime is 13156063. The reversal of 13156061 is 16065131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13156061 - 2¹⁴ = 13139677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13156063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30965 + ... + 31386.

It is an arithmetic number, because the mean of its divisors is an integer number (3304656).

Almost surely, 2^13156061 is an apocalyptic number.

It is an amenable number.

13156061 is a deficient number, since it is larger than the sum of its proper divisors (62563).

13156061 is an equidigital number, since it uses as much as digits as its factorization.

13156061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62562.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 13156061 is about 3627.1284785626. The cubic root of 13156061 is about 236.0706302529.

The spelling of 13156061 in words is "thirteen million, one hundred fifty-six thousand, sixty-one".