13429257 has 8 divisors (see below), whose sum is σ = 18848160. Its totient is φ = 8481600.

The previous prime is 13429223. The next prime is 13429267. The reversal of 13429257 is 75292431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13429257 - 2²³ = 5040649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13429267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117744 + ... + 117857.

It is an arithmetic number, because the mean of its divisors is an integer number (2356020).

Almost surely, 2^13429257 is an apocalyptic number.

It is an amenable number.

13429257 is a deficient number, since it is larger than the sum of its proper divisors (5418903).

13429257 is a wasteful number, since it uses less digits than its factorization.

13429257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235623.

The product of its digits is 15120, while the sum is 33.

The square root of 13429257 is about 3664.5950663068. The cubic root of 13429257 is about 237.6935124607.

The spelling of 13429257 in words is "thirteen million, four hundred twenty-nine thousand, two hundred fifty-seven".