149900 has 18 divisors (see below), whose sum is σ = 325500. Its totient is φ = 59920.

The previous prime is 149899. The next prime is 149909. The reversal of 149900 is 9941.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149900.

It is not an unprimeable number, because it can be changed into a prime (149909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 650 + ... + 849.

2¹⁴⁹⁹⁰⁰ is an apocalyptic number.

149900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149900 is an abundant number, since it is smaller than the sum of its proper divisors (175600).

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

149900 is a wasteful number, since it uses less digits than its factorization.

149900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 149900 is about 387.1692136521. The cubic root of 149900 is about 53.1211185169.

The spelling of 149900 in words is "one hundred forty-nine thousand, nine hundred".