149685500 has 24 divisors (see below), whose sum is σ = 326914224. Its totient is φ = 59874000.

The previous prime is 149685469. The next prime is 149685509. The reversal of 149685500 is 5586941.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149685509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149186 + ... + 150185.

It is an arithmetic number, because the mean of its divisors is an integer number (13621426).

Almost surely, 2^149685500 is an apocalyptic number.

149685500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149685500 is an abundant number, since it is smaller than the sum of its proper divisors (177228724).

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

149685500 is a wasteful number, since it uses less digits than its factorization.

149685500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299390 (or 299378 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 149685500 is about 12234.6025681262. The cubic root of 149685500 is about 530.9576846297.

The spelling of 149685500 in words is "one hundred forty-nine million, six hundred eighty-five thousand, five hundred".