13119861 has 16 divisors (see below), whose sum is σ = 19051200. Its totient is φ = 7999488.

The previous prime is 13119857. The next prime is 13119863. The reversal of 13119861 is 16891131.

It is not a de Polignac number, because 13119861 - 2² = 13119857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13119863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2316 + ... + 5621.

It is an arithmetic number, because the mean of its divisors is an integer number (1190700).

Almost surely, 2^13119861 is an apocalyptic number.

It is an amenable number.

13119861 is a deficient number, since it is larger than the sum of its proper divisors (5931339).

13119861 is a wasteful number, since it uses less digits than its factorization.

13119861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7988.

The product of its digits is 1296, while the sum is 30.

The square root of 13119861 is about 3622.1348677265. The cubic root of 13119861 is about 235.8539086739.

The spelling of 13119861 in words is "thirteen million, one hundred nineteen thousand, eight hundred sixty-one".