149389512 has 32 divisors (see below), whose sum is σ = 374438400. Its totient is φ = 49667904.

The previous prime is 149389511. The next prime is 149389517. The reversal of 149389512 is 215983941.

It is not an unprimeable number, because it can be changed into a prime (149389511) 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 7 ways as a sum of consecutive naturals, for example, 1689 + ... + 17367.

It is an arithmetic number, because the mean of its divisors is an integer number (11701200).

Almost surely, 2^149389512 is an apocalyptic number.

149389512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149389512 is an abundant number, since it is smaller than the sum of its proper divisors (225048888).

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

149389512 is a wasteful number, since it uses less digits than its factorization.

149389512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16085 (or 16081 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 149389512 is about 12222.5002352219. The cubic root of 149389512 is about 530.6074819168.

The spelling of 149389512 in words is "one hundred forty-nine million, three hundred eighty-nine thousand, five hundred twelve".