148331988 has 36 divisors (see below), whose sum is σ = 428515360. Its totient is φ = 42380496.

The previous prime is 148331977. The next prime is 148332007. The reversal of 148331988 is 889133841.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294058 + ... + 294561.

Almost surely, 2^148331988 is an apocalyptic number.

148331988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

148331988 is an abundant number, since it is smaller than the sum of its proper divisors (280183372).

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

148331988 is a wasteful number, since it uses less digits than its factorization.

148331988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588636 (or 588631 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 148331988 is about 12179.1620401405. The cubic root of 148331988 is about 529.3524641988.

The spelling of 148331988 in words is "one hundred forty-eight million, three hundred thirty-one thousand, nine hundred eighty-eight".