148019978 has 8 divisors (see below), whose sum is σ = 229192320. Its totient is φ = 71622540.

The previous prime is 148019941. The next prime is 148019987. The reversal of 148019978 is 879910841.

148019978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1193648 + ... + 1193771.

It is an arithmetic number, because the mean of its divisors is an integer number (28649040).

Almost surely, 2^148019978 is an apocalyptic number.

148019978 is a deficient number, since it is larger than the sum of its proper divisors (81172342).

148019978 is a wasteful number, since it uses less digits than its factorization.

148019978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387452.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 148019978 is about 12166.3461236314. The cubic root of 148019978 is about 528.9810468920.

The spelling of 148019978 in words is "one hundred forty-eight million, nineteen thousand, nine hundred seventy-eight".