148431780 has 108 divisors (see below), whose sum is σ = 523783260. Its totient is φ = 33925248.

The previous prime is 148431739. The next prime is 148431793. The reversal of 148431780 is 87134841.

148431780 is a `hidden beast` number, since 1 + 484 + 3 + 178 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21734244 + 126697536 = 4662^2 + 11256^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 35 ways as a sum of consecutive naturals, for example, 406 + ... + 17234.

It is an arithmetic number, because the mean of its divisors is an integer number (4849845).

Almost surely, 2^148431780 is an apocalyptic number.

148431780 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 148431780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261891630).

148431780 is an abundant number, since it is smaller than the sum of its proper divisors (375351480).

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

148431780 is a wasteful number, since it uses less digits than its factorization.

148431780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16858 (or 16846 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 148431780 is about 12183.2581849028. The cubic root of 148431780 is about 529.4711468467.

The spelling of 148431780 in words is "one hundred forty-eight million, four hundred thirty-one thousand, seven hundred eighty".