13431351 has 8 divisors (see below), whose sum is σ = 18325120. Its totient is φ = 8745912.

The previous prime is 13431349. The next prime is 13431359. The reversal of 13431351 is 15313431.

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

It is not a de Polignac number, because 13431351 - 2¹ = 13431349 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 (13431359) 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, 51931 + ... + 52188.

It is an arithmetic number, because the mean of its divisors is an integer number (2290640).

Almost surely, 2^13431351 is an apocalyptic number.

13431351 is a deficient number, since it is larger than the sum of its proper divisors (4893769).

13431351 is a wasteful number, since it uses less digits than its factorization.

13431351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104165.

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

The square root of 13431351 is about 3664.8807620440. The cubic root of 13431351 is about 237.7058661933.

Adding to 13431351 its reverse (15313431), we get a palindrome (28744782).

The spelling of 13431351 in words is "thirteen million, four hundred thirty-one thousand, three hundred fifty-one".