149749744 has 20 divisors (see below), whose sum is σ = 290439496. Its totient is φ = 74797632.

The previous prime is 149749739. The next prime is 149749763. The reversal of 149749744 is 447947941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13207 + ... + 21769.

Almost surely, 2^149749744 is an apocalyptic number.

It is an amenable number.

149749744 is a deficient number, since it is larger than the sum of its proper divisors (140689752).

149749744 is a wasteful number, since it uses less digits than its factorization.

149749744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664 (or 9658 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The square root of 149749744 is about 12237.2277906395. The cubic root of 149749744 is about 531.0336349091.

The spelling of 149749744 in words is "one hundred forty-nine million, seven hundred forty-nine thousand, seven hundred forty-four".