149385983 has 8 divisors (see below), whose sum is σ = 153589920. Its totient is φ = 145190880.

The previous prime is 149385967. The next prime is 149386007. The reversal of 149385983 is 389583941.

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 149385983 - 2⁴ = 149385967 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 (149385283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47273 + ... + 50333.

It is an arithmetic number, because the mean of its divisors is an integer number (19198740).

Almost surely, 2^149385983 is an apocalyptic number.

149385983 is a deficient number, since it is larger than the sum of its proper divisors (4203937).

149385983 is a wasteful number, since it uses less digits than its factorization.

149385983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417.

The product of its digits is 933120, while the sum is 50.

The square root of 149385983 is about 12222.3558694713. The cubic root of 149385983 is about 530.6033037374.

The spelling of 149385983 in words is "one hundred forty-nine million, three hundred eighty-five thousand, nine hundred eighty-three".