13145262131 has 4 divisors (see below), whose sum is σ = 13146314664. Its totient is φ = 13144209600.

The previous prime is 13145262107. The next prime is 13145262139. The reversal of 13145262131 is 13126254131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13126254131 = 449 ⋅29234419.

It is a cyclic number.

It is not a de Polignac number, because 13145262131 - 2²⁶ = 13078153267 is a prime.

It is a super-2 number, since 2×13145262131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13145262094 and 13145262103.

It is not an unprimeable number, because it can be changed into a prime (13145262139) 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, 507305 + ... + 532586.

It is an arithmetic number, because the mean of its divisors is an integer number (3286578666).

Almost surely, 2^13145262131 is an apocalyptic number.

13145262131 is a deficient number, since it is larger than the sum of its proper divisors (1052533).

13145262131 is a wasteful number, since it uses less digits than its factorization.

13145262131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052532.

The product of its digits is 4320, while the sum is 29.

The spelling of 13145262131 in words is "thirteen billion, one hundred forty-five million, two hundred sixty-two thousand, one hundred thirty-one".