13142691 has 12 divisors (see below), whose sum is σ = 19153368. Its totient is φ = 8683584.

The previous prime is 13142641. The next prime is 13142693. The reversal of 13142691 is 19624131.

It is not a de Polignac number, because 13142691 - 2⁹ = 13142179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13142693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5445 + ... + 7478.

It is an arithmetic number, because the mean of its divisors is an integer number (1596114).

Almost surely, 2^13142691 is an apocalyptic number.

13142691 is a deficient number, since it is larger than the sum of its proper divisors (6010677).

13142691 is a wasteful number, since it uses less digits than its factorization.

13142691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13042 (or 13039 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 13142691 is about 3625.2849543174. The cubic root of 13142691 is about 235.9906333063.

It can be divided in two parts, 1314 and 2691, that added together give a triangular number (4005 = T₈₉).

The spelling of 13142691 in words is "thirteen million, one hundred forty-two thousand, six hundred ninety-one".