149497938 has 24 divisors (see below), whose sum is σ = 324667200. Its totient is φ = 49716504.

The previous prime is 149497937. The next prime is 149497951. The reversal of 149497938 is 839794941.

149497938 is a `hidden beast` number, since 149 + 497 + 9 + 3 + 8 = 666.

149497938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149497937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1558 + ... + 17361.

It is an arithmetic number, because the mean of its divisors is an integer number (13527800).

Almost surely, 2^149497938 is an apocalyptic number.

149497938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

149497938 is an abundant number, since it is smaller than the sum of its proper divisors (175169262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149497938 is a wasteful number, since it uses less digits than its factorization.

149497938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19366 (or 19363 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 149497938 is about 12226.9349388962. The cubic root of 149497938 is about 530.7358214345.

The spelling of 149497938 in words is "one hundred forty-nine million, four hundred ninety-seven thousand, nine hundred thirty-eight".