13149989 has 8 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 12624976.

The previous prime is 13149973. The next prime is 13150003. The reversal of 13149989 is 98994131.

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 13149989 - 2⁴ = 13149973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13149589) 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, 149 + ... + 5130.

It is an arithmetic number, because the mean of its divisors is an integer number (1710720).

Almost surely, 2^13149989 is an apocalyptic number.

It is an amenable number.

13149989 is a deficient number, since it is larger than the sum of its proper divisors (535771).

13149989 is an equidigital number, since it uses as much as digits as its factorization.

13149989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379.

The product of its digits is 69984, while the sum is 44.

The square root of 13149989 is about 3626.2913561930. The cubic root of 13149989 is about 236.0343062739.

The spelling of 13149989 in words is "thirteen million, one hundred forty-nine thousand, nine hundred eighty-nine".