149584689 has 6 divisors (see below), whose sum is σ = 216066786. Its totient is φ = 99723120.

The previous prime is 149584681. The next prime is 149584727. The reversal of 149584689 is 986485941.

It can be written as a sum of positive squares in only one way, i.e., 88510464 + 61074225 = 9408^2 + 7815^2 .

It is not a de Polignac number, because 149584689 - 2³ = 149584681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149584681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8310252 + ... + 8310269.

It is an arithmetic number, because the mean of its divisors is an integer number (36011131).

Almost surely, 2^149584689 is an apocalyptic number.

It is an amenable number.

149584689 is a deficient number, since it is larger than the sum of its proper divisors (66482097).

149584689 is a wasteful number, since it uses less digits than its factorization.

149584689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16620527 (or 16620524 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 149584689 is about 12230.4819610676. The cubic root of 149584689 is about 530.8384604429.

The spelling of 149584689 in words is "one hundred forty-nine million, five hundred eighty-four thousand, six hundred eighty-nine".