13146331 has 4 divisors (see below), whose sum is σ = 14341464. Its totient is φ = 11951200.

The previous prime is 13146319. The next prime is 13146349. The reversal of 13146331 is 13364131.

It is a happy number.

13146331 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13146331 - 2⁹ = 13145819 is a prime.

It is a super-2 number, since 2×13146331² = 345652037523122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13146361) 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, 597550 + ... + 597571.

It is an arithmetic number, because the mean of its divisors is an integer number (3585366).

Almost surely, 2^13146331 is an apocalyptic number.

13146331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13146331 is a deficient number, since it is larger than the sum of its proper divisors (1195133).

13146331 is a wasteful number, since it uses less digits than its factorization.

13146331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195132.

The product of its digits is 648, while the sum is 22.

The square root of 13146331 is about 3625.7869490636. The cubic root of 13146331 is about 236.0124179523.

The spelling of 13146331 in words is "thirteen million, one hundred forty-six thousand, three hundred thirty-one".