149973764 has 12 divisors (see below), whose sum is σ = 276267600. Its totient is φ = 71040168.

The previous prime is 149973751. The next prime is 149973787. The reversal of 149973764 is 467379941.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 986594 + ... + 986745.

It is an arithmetic number, because the mean of its divisors is an integer number (23022300).

Almost surely, 2^149973764 is an apocalyptic number.

It is an amenable number.

149973764 is a deficient number, since it is larger than the sum of its proper divisors (126293836).

149973764 is a wasteful number, since it uses less digits than its factorization.

149973764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973362 (or 1973360 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 50.

The square root of 149973764 is about 12246.3775868622. The cubic root of 149973764 is about 531.2983051070.

The spelling of 149973764 in words is "one hundred forty-nine million, nine hundred seventy-three thousand, seven hundred sixty-four".