149784716 has 12 divisors (see below), whose sum is σ = 266566440. Its totient is φ = 73622880.

The previous prime is 149784673. The next prime is 149784721. The reversal of 149784716 is 617487941.

It is a happy number.

It is a super-2 number, since 2×149784716² = 44870922294401312, which contains 22 as substring.

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, 317105 + ... + 317576.

It is an arithmetic number, because the mean of its divisors is an integer number (22213870).

Almost surely, 2^149784716 is an apocalyptic number.

It is an amenable number.

149784716 is a deficient number, since it is larger than the sum of its proper divisors (116781724).

149784716 is a wasteful number, since it uses less digits than its factorization.

149784716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634744 (or 634742 counting only the distinct ones).

The product of its digits is 338688, while the sum is 47.

The square root of 149784716 is about 12238.6566256269. The cubic root of 149784716 is about 531.0749702335.

The spelling of 149784716 in words is "one hundred forty-nine million, seven hundred eighty-four thousand, seven hundred sixteen".