148639580 has 12 divisors (see below), whose sum is σ = 312143160. Its totient is φ = 59455824.

The previous prime is 148639577. The next prime is 148639633. The reversal of 148639580 is 85936841.

148639580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 3715970 + ... + 3716009.

It is an arithmetic number, because the mean of its divisors is an integer number (26011930).

Almost surely, 2^148639580 is an apocalyptic number.

148639580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148639580 is an abundant number, since it is smaller than the sum of its proper divisors (163503580).

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

148639580 is a wasteful number, since it uses less digits than its factorization.

148639580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7431988 (or 7431986 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 148639580 is about 12191.7832985991. The cubic root of 148639580 is about 529.7181128283.

The spelling of 148639580 in words is "one hundred forty-eight million, six hundred thirty-nine thousand, five hundred eighty".