148320978 has 16 divisors (see below), whose sum is σ = 319460736. Its totient is φ = 45637200.

The previous prime is 148320961. The next prime is 148320983. The reversal of 148320978 is 879023841.

148320978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×148320978² = 43998225029752968, which contains 22 as substring.

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, 950698 + ... + 950853.

It is an arithmetic number, because the mean of its divisors is an integer number (19966296).

Almost surely, 2^148320978 is an apocalyptic number.

148320978 is an abundant number, since it is smaller than the sum of its proper divisors (171139758).

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

148320978 is a wasteful number, since it uses less digits than its factorization.

148320978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901569.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 148320978 is about 12178.7100302126. The cubic root of 148320978 is about 529.3393667433.

The spelling of 148320978 in words is "one hundred forty-eight million, three hundred twenty thousand, nine hundred seventy-eight".