149630978 has 32 divisors (see below), whose sum is σ = 262517760. Its totient is φ = 62637120.

The previous prime is 149630959. The next prime is 149631049. The reversal of 149630978 is 879036941.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312143 + ... + 312621.

It is an arithmetic number, because the mean of its divisors is an integer number (8203680).

Almost surely, 2^149630978 is an apocalyptic number.

149630978 is a deficient number, since it is larger than the sum of its proper divisors (112886782).

149630978 is a wasteful number, since it uses less digits than its factorization.

149630978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 149630978 is about 12232.3741767492. The cubic root of 149630978 is about 530.8932108043.

The spelling of 149630978 in words is "one hundred forty-nine million, six hundred thirty thousand, nine hundred seventy-eight".