148978386 has 32 divisors (see below), whose sum is σ = 336012480. Its totient is φ = 48917088.

The previous prime is 148978367. The next prime is 148978397. The reversal of 148978386 is 683879841.

148978386 is a `hidden beast` number, since 1 + 489 + 7 + 83 + 86 = 666.

148978386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16971 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (10500390).

Almost surely, 2^148978386 is an apocalyptic number.

148978386 is an abundant number, since it is smaller than the sum of its proper divisors (187034094).

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

148978386 is a wasteful number, since it uses less digits than its factorization.

148978386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41255 (or 41249 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 148978386 is about 12205.6702396878. The cubic root of 148978386 is about 530.1202836050.

The spelling of 148978386 in words is "one hundred forty-eight million, nine hundred seventy-eight thousand, three hundred eighty-six".