149550709 has 16 divisors (see below), whose sum is σ = 192885120. Its totient is φ = 112512960.

The previous prime is 149550701. The next prime is 149550721. The reversal of 149550709 is 907055941.

It is not a de Polignac number, because 149550709 - 2³ = 149550701 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 (149550701) 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 15 ways as a sum of consecutive naturals, for example, 31254 + ... + 35719.

It is an arithmetic number, because the mean of its divisors is an integer number (12055320).

Almost surely, 2^149550709 is an apocalyptic number.

It is an amenable number.

149550709 is a deficient number, since it is larger than the sum of its proper divisors (43334411).

149550709 is a wasteful number, since it uses less digits than its factorization.

149550709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67020.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 149550709 is about 12229.0927300434. The cubic root of 149550709 is about 530.7982619061.

The spelling of 149550709 in words is "one hundred forty-nine million, five hundred fifty thousand, seven hundred nine".