13429951 has 4 divisors (see below), whose sum is σ = 13438600. Its totient is φ = 13421304.

The previous prime is 13429931. The next prime is 13429961. The reversal of 13429951 is 15992431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13429951 - 2¹⁹ = 12905663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13429931) 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, 1281 + ... + 5338.

It is an arithmetic number, because the mean of its divisors is an integer number (3359650).

Almost surely, 2^13429951 is an apocalyptic number.

13429951 is a deficient number, since it is larger than the sum of its proper divisors (8649).

13429951 is an equidigital number, since it uses as much as digits as its factorization.

13429951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8648.

The product of its digits is 9720, while the sum is 34.

The square root of 13429951 is about 3664.6897549452. The cubic root of 13429951 is about 237.6976069155.

The spelling of 13429951 in words is "thirteen million, four hundred twenty-nine thousand, nine hundred fifty-one".