13076162581 has 4 divisors (see below), whose sum is σ = 13290525964. Its totient is φ = 12861799200.

The previous prime is 13076162579. The next prime is 13076162587. The reversal of 13076162581 is 18526167031.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3429976356 + 9646186225 = 58566^2 + 98215^2 .

It is a cyclic number.

It is not a de Polignac number, because 13076162581 - 2¹ = 13076162579 is a prime.

It is a super-2 number, since 2×13076162581² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13076162587) 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, 107181600 + ... + 107181721.

It is an arithmetic number, because the mean of its divisors is an integer number (3322631491).

Almost surely, 2^13076162581 is an apocalyptic number.

It is an amenable number.

13076162581 is a deficient number, since it is larger than the sum of its proper divisors (214363383).

13076162581 is an equidigital number, since it uses as much as digits as its factorization.

13076162581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214363382.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 13076162581 in words is "thirteen billion, seventy-six million, one hundred sixty-two thousand, five hundred eighty-one".