149191472 has 20 divisors (see below), whose sum is σ = 291338496. Its totient is φ = 74007360.

The previous prime is 149191447. The next prime is 149191481. The reversal of 149191472 is 274191941.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34679 + ... + 38742.

Almost surely, 2^149191472 is an apocalyptic number.

It is an amenable number.

149191472 is a deficient number, since it is larger than the sum of its proper divisors (142147024).

149191472 is a wasteful number, since it uses less digits than its factorization.

149191472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73556 (or 73550 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 149191472 is about 12214.3960964102. The cubic root of 149191472 is about 530.3729095056.

The spelling of 149191472 in words is "one hundred forty-nine million, one hundred ninety-one thousand, four hundred seventy-two".