148978620 has 288 divisors, whose sum is σ = 559104000. Its totient is φ = 32006016.

The previous prime is 148978603. The next prime is 148978631. The reversal of 148978620 is 26879841.

148978620 is a `hidden beast` number, since 14 + 8 + 9 + 7 + 8 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1172997 + ... + 1173123.

Almost surely, 2^148978620 is an apocalyptic number.

148978620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148978620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279552000).

148978620 is an abundant number, since it is smaller than the sum of its proper divisors (410125380).

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

148978620 is a wasteful number, since it uses less digits than its factorization.

148978620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 148978620 is about 12205.6798253928. The cubic root of 148978620 is about 530.1205611577.

The spelling of 148978620 in words is "one hundred forty-eight million, nine hundred seventy-eight thousand, six hundred twenty".