149613399 has 28 divisors (see below), whose sum is σ = 241587976. Its totient is φ = 92063952.

The previous prime is 149613389. The next prime is 149613403. The reversal of 149613399 is 993316941.

It is not a de Polignac number, because 149613399 - 2⁸ = 149613143 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 (149613389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1584 + ... + 17370.

It is an arithmetic number, because the mean of its divisors is an integer number (8628142).

Almost surely, 2^149613399 is an apocalyptic number.

149613399 is a deficient number, since it is larger than the sum of its proper divisors (91974577).

149613399 is an equidigital number, since it uses as much as digits as its factorization.

149613399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15818 (or 15803 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 149613399 is about 12231.6556115679. The cubic root of 149613399 is about 530.8724197948.

The spelling of 149613399 in words is "one hundred forty-nine million, six hundred thirteen thousand, three hundred ninety-nine".