13129316 has 12 divisors (see below), whose sum is σ = 23110332. Its totient is φ = 6526368.

The previous prime is 13129313. The next prime is 13129331. The reversal of 13129316 is 61392131.

It can be written as a sum of positive squares in 2 ways, for example, as 8702500 + 4426816 = 2950^2 + 2104^2 .

It is not an unprimeable number, because it can be changed into a prime (13129313) 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, 8795 + ... + 10178.

It is an arithmetic number, because the mean of its divisors is an integer number (1925861).

Almost surely, 2^13129316 is an apocalyptic number.

It is an amenable number.

13129316 is a deficient number, since it is larger than the sum of its proper divisors (9981016).

13129316 is a wasteful number, since it uses less digits than its factorization.

13129316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19150 (or 19148 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 13129316 is about 3623.4398021769. The cubic root of 13129316 is about 235.9105521406.

The spelling of 13129316 in words is "thirteen million, one hundred twenty-nine thousand, three hundred sixteen".