13149788 has 6 divisors (see below), whose sum is σ = 23012136. Its totient is φ = 6574892.

The previous prime is 13149781. The next prime is 13149793. The reversal of 13149788 is 88794131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13149781) 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 as a sum of consecutive naturals, namely, 1643720 + ... + 1643727.

It is an arithmetic number, because the mean of its divisors is an integer number (3835356).

Almost surely, 2^13149788 is an apocalyptic number.

It is an amenable number.

13149788 is a deficient number, since it is larger than the sum of its proper divisors (9862348).

13149788 is a wasteful number, since it uses less digits than its factorization.

13149788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287451 (or 3287449 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 13149788 is about 3626.2636418220. The cubic root of 13149788 is about 236.0331036586.

The spelling of 13149788 in words is "thirteen million, one hundred forty-nine thousand, seven hundred eighty-eight".