148431920 has 80 divisors (see below), whose sum is σ = 424764480. Its totient is φ = 46973952.

The previous prime is 148431919. The next prime is 148431973. The reversal of 148431920 is 29134841.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2915 + ... + 17474.

It is an arithmetic number, because the mean of its divisors is an integer number (5309556).

Almost surely, 2^148431920 is an apocalyptic number.

148431920 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 148431920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212382240).

148431920 is an abundant number, since it is smaller than the sum of its proper divisors (276332560).

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

148431920 is a wasteful number, since it uses less digits than its factorization.

148431920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20422 (or 20416 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 148431920 is about 12183.2639304909. The cubic root of 148431920 is about 529.4713133114.

The spelling of 148431920 in words is "one hundred forty-eight million, four hundred thirty-one thousand, nine hundred twenty".