13261983 has 32 divisors (see below), whose sum is σ = 21084672. Its totient is φ = 7257600.

The previous prime is 13261907. The next prime is 13261999. The reversal of 13261983 is 38916231.

It is not a de Polignac number, because 13261983 - 2¹⁴ = 13245599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13261483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62748 + ... + 62958.

It is an arithmetic number, because the mean of its divisors is an integer number (658896).

Almost surely, 2^13261983 is an apocalyptic number.

13261983 is a deficient number, since it is larger than the sum of its proper divisors (7822689).

13261983 is a wasteful number, since it uses less digits than its factorization.

13261983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335.

The product of its digits is 7776, while the sum is 33.

The square root of 13261983 is about 3641.7005642969. The cubic root of 13261983 is about 236.7024876900.

The spelling of 13261983 in words is "thirteen million, two hundred sixty-one thousand, nine hundred eighty-three".