13065231 has 8 divisors (see below), whose sum is σ = 18445104. Its totient is φ = 8197760.

The previous prime is 13065211. The next prime is 13065251. The reversal of 13065231 is 13256031.

It is an interprime number because it is at equal distance from previous prime (13065211) and next prime (13065251).

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

It is a cyclic number.

It is not a de Polignac number, because 13065231 - 2⁹ = 13064719 is a prime.

It is a super-2 number, since 2×13065231² = 341400522166722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13065198 and 13065207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13065211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128040 + ... + 128141.

It is an arithmetic number, because the mean of its divisors is an integer number (2305638).

Almost surely, 2^13065231 is an apocalyptic number.

13065231 is a deficient number, since it is larger than the sum of its proper divisors (5379873).

13065231 is a wasteful number, since it uses less digits than its factorization.

13065231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256201.

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

The square root of 13065231 is about 3614.5858683949. The cubic root of 13065231 is about 235.5260946288.

The spelling of 13065231 in words is "thirteen million, sixty-five thousand, two hundred thirty-one".