149188765 has 24 divisors (see below), whose sum is σ = 199219104. Its totient is φ = 107157600.

The previous prime is 149188747. The next prime is 149188769. The reversal of 149188765 is 567881941.

It is not a de Polignac number, because 149188765 - 2²³ = 140800157 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 (149188769) 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 23 ways as a sum of consecutive naturals, for example, 48730 + ... + 51700.

It is an arithmetic number, because the mean of its divisors is an integer number (8300796).

Almost surely, 2^149188765 is an apocalyptic number.

It is an amenable number.

149188765 is a deficient number, since it is larger than the sum of its proper divisors (50030339).

149188765 is a wasteful number, since it uses less digits than its factorization.

149188765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081 (or 3070 counting only the distinct ones).

The product of its digits is 483840, while the sum is 49.

The square root of 149188765 is about 12214.2852840434. The cubic root of 149188765 is about 530.3697017080.

The spelling of 149188765 in words is "one hundred forty-nine million, one hundred eighty-eight thousand, seven hundred sixty-five".