149566983 has 8 divisors (see below), whose sum is σ = 199479168. Its totient is φ = 99683064.

The previous prime is 149566979. The next prime is 149567009. The reversal of 149566983 is 389665941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149566983 - 2² = 149566979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149566933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16816 + ... + 24122.

It is an arithmetic number, because the mean of its divisors is an integer number (24934896).

Almost surely, 2^149566983 is an apocalyptic number.

149566983 is a deficient number, since it is larger than the sum of its proper divisors (49912185).

149566983 is an equidigital number, since it uses as much as digits as its factorization.

149566983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14133.

The product of its digits is 1399680, while the sum is 51.

The square root of 149566983 is about 12229.7580924563. The cubic root of 149566983 is about 530.8175149020.

The spelling of 149566983 in words is "one hundred forty-nine million, five hundred sixty-six thousand, nine hundred eighty-three".