13153431 has 8 divisors (see below), whose sum is σ = 17664640. Its totient is φ = 8705592.

The previous prime is 13153429. The next prime is 13153471. The reversal of 13153431 is 13435131.

13153431 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13153431 - 2¹ = 13153429 is a prime.

It is a super-2 number, since 2×13153431² = 346025494143522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13153398 and 13153407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13153471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15355 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (2208080).

Almost surely, 2^13153431 is an apocalyptic number.

13153431 is a deficient number, since it is larger than the sum of its proper divisors (4511209).

13153431 is a wasteful number, since it uses less digits than its factorization.

13153431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31685.

The product of its digits is 540, while the sum is 21.

The square root of 13153431 is about 3626.7659146959. The cubic root of 13153431 is about 236.0548984130.

Adding to 13153431 its reverse (13435131), we get a palindrome (26588562).

The spelling of 13153431 in words is "thirteen million, one hundred fifty-three thousand, four hundred thirty-one".