149133975 has 12 divisors (see below), whose sum is σ = 246568296. Its totient is φ = 79538080.

The previous prime is 149133949. The next prime is 149133977. The reversal of 149133975 is 579331941.

It is not a de Polignac number, because 149133975 - 2¹⁹ = 148609687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149133977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 994152 + ... + 994301.

It is an arithmetic number, because the mean of its divisors is an integer number (20547358).

Almost surely, 2^149133975 is an apocalyptic number.

149133975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149133975 is a deficient number, since it is larger than the sum of its proper divisors (97434321).

149133975 is a wasteful number, since it uses less digits than its factorization.

149133975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988466 (or 1988461 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 149133975 is about 12212.0422125048. The cubic root of 149133975 is about 530.3047671623.

The spelling of 149133975 in words is "one hundred forty-nine million, one hundred thirty-three thousand, nine hundred seventy-five".