13129694 has 4 divisors (see below), whose sum is σ = 19694544. Its totient is φ = 6564846.

The previous prime is 13129693. The next prime is 13129747. The reversal of 13129694 is 49692131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49692131 = 2647 ⋅18773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282422 + ... + 3282425.

It is an arithmetic number, because the mean of its divisors is an integer number (4923636).

Almost surely, 2^13129694 is an apocalyptic number.

13129694 is a deficient number, since it is larger than the sum of its proper divisors (6564850).

13129694 is an equidigital number, since it uses as much as digits as its factorization.

13129694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6564849.

The product of its digits is 11664, while the sum is 35.

The square root of 13129694 is about 3623.4919621823. The cubic root of 13129694 is about 235.9128161157.

The spelling of 13129694 in words is "thirteen million, one hundred twenty-nine thousand, six hundred ninety-four".