13145158631 has 16 divisors (see below), whose sum is σ = 14474069280. Its totient is φ = 11838919680.

The previous prime is 13145158619. The next prime is 13145158643. The reversal of 13145158631 is 13685154131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13145158619) and next prime (13145158643).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13145158631 is a prime.

It is a super-2 number, since 2×13145158631² (a number of 21 digits) contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145158231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758495 + ... + 775631.

It is an arithmetic number, because the mean of its divisors is an integer number (904629330).

Almost surely, 2^13145158631 is an apocalyptic number.

13145158631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13145158631 is a deficient number, since it is larger than the sum of its proper divisors (1328910649).

13145158631 is a wasteful number, since it uses less digits than its factorization.

13145158631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17794.

The product of its digits is 43200, while the sum is 38.

The spelling of 13145158631 in words is "thirteen billion, one hundred forty-five million, one hundred fifty-eight thousand, six hundred thirty-one".