13012291 has 2 divisors, whose sum is σ = 13012292. Its totient is φ = 13012290.

The previous prime is 13012261. The next prime is 13012301. The reversal of 13012291 is 19221031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13012291 - 2²³ = 4623683 is a prime.

It is not a weakly prime, because it can be changed into another prime (13012231) 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 as a sum of consecutive naturals, namely, 6506145 + 6506146.

It is an arithmetic number, because the mean of its divisors is an integer number (6506146).

Almost surely, 2^13012291 is an apocalyptic number.

13012291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13012291 is an equidigital number, since it uses as much as digits as its factorization.

13012291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 13012291 is about 3607.2553278081. The cubic root of 13012291 is about 235.2075486475.

It can be divided in two parts, 130 and 12291, that added together give a palindrome (12421).

The spelling of 13012291 in words is "thirteen million, twelve thousand, two hundred ninety-one".