13149859 has 8 divisors (see below), whose sum is σ = 14164992. Its totient is φ = 12171720.

The previous prime is 13149841. The next prime is 13149887. The reversal of 13149859 is 95894131.

13149859 = 512² + 513² + ... + 557².

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 13149859 - 2⁵ = 13149827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13149809) 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 7 ways as a sum of consecutive naturals, for example, 8509 + ... + 9934.

It is an arithmetic number, because the mean of its divisors is an integer number (1770624).

Almost surely, 2^13149859 is an apocalyptic number.

13149859 is a deficient number, since it is larger than the sum of its proper divisors (1015133).

13149859 is a wasteful number, since it uses less digits than its factorization.

13149859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18497.

The product of its digits is 38880, while the sum is 40.

The square root of 13149859 is about 3626.2734314996. The cubic root of 13149859 is about 236.0335284644.

The spelling of 13149859 in words is "thirteen million, one hundred forty-nine thousand, eight hundred fifty-nine".