149525839 has 6 divisors (see below), whose sum is σ = 157810200. Its totient is φ = 141655716.

The previous prime is 149525837. The next prime is 149525851. The reversal of 149525839 is 938525941.

It is not a de Polignac number, because 149525839 - 2¹ = 149525837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149525833) 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, 206739 + ... + 207460.

It is an arithmetic number, because the mean of its divisors is an integer number (26301700).

Almost surely, 2^149525839 is an apocalyptic number.

149525839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149525839 is a deficient number, since it is larger than the sum of its proper divisors (8284361).

149525839 is an equidigital number, since it uses as much as digits as its factorization.

149525839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414237 (or 414218 counting only the distinct ones).

The product of its digits is 388800, while the sum is 46.

The square root of 149525839 is about 12228.0758502718. The cubic root of 149525839 is about 530.7688366926.

The spelling of 149525839 in words is "one hundred forty-nine million, five hundred twenty-five thousand, eight hundred thirty-nine".