149774936 has 8 divisors (see below), whose sum is σ = 280828020. Its totient is φ = 74887464.

The previous prime is 149774921. The next prime is 149774939. The reversal of 149774936 is 639477941.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149774939) 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 as a sum of consecutive naturals, namely, 9360926 + ... + 9360941.

Almost surely, 2^149774936 is an apocalyptic number.

It is an amenable number.

149774936 is a deficient number, since it is larger than the sum of its proper divisors (131053084).

149774936 is a wasteful number, since it uses less digits than its factorization.

149774936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721873 (or 18721869 counting only the distinct ones).

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

The square root of 149774936 is about 12238.2570654485. The cubic root of 149774936 is about 531.0634113634.

The spelling of 149774936 in words is "one hundred forty-nine million, seven hundred seventy-four thousand, nine hundred thirty-six".