149580978 has 16 divisors (see below), whose sum is σ = 305527680. Its totient is φ = 48799376.

The previous prime is 149580941. The next prime is 149581001. The reversal of 149580978 is 879085941.

149580978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 149580978.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264933 + ... + 265496.

It is an arithmetic number, because the mean of its divisors is an integer number (19095480).

Almost surely, 2^149580978 is an apocalyptic number.

149580978 is an abundant number, since it is smaller than the sum of its proper divisors (155946702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149580978 is a wasteful number, since it uses less digits than its factorization.

149580978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530481.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 149580978 is about 12230.3302490162. The cubic root of 149580978 is about 530.8340706046.

The spelling of 149580978 in words is "one hundred forty-nine million, five hundred eighty thousand, nine hundred seventy-eight".