149019900 has 36 divisors (see below), whose sum is σ = 431165112. Its totient is φ = 39738560.

The previous prime is 149019881. The next prime is 149019911. The reversal of 149019900 is 9910941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248067 + ... + 248666.

Almost surely, 2^149019900 is an apocalyptic number.

149019900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149019900 is an abundant number, since it is smaller than the sum of its proper divisors (282145212).

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

149019900 is a wasteful number, since it uses less digits than its factorization.

149019900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496750 (or 496743 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 149019900 is about 12207.3707242797. The cubic root of 149019900 is about 530.1695197619.

The spelling of 149019900 in words is "one hundred forty-nine million, nineteen thousand, nine hundred".