148311820 has 24 divisors (see below), whose sum is σ = 324997344. Its totient is φ = 56745216.

The previous prime is 148311811. The next prime is 148311847. The reversal of 148311820 is 28113841.

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 7 ways as a sum of consecutive naturals, for example, 160749 + ... + 161668.

It is an arithmetic number, because the mean of its divisors is an integer number (13541556).

Almost surely, 2^148311820 is an apocalyptic number.

148311820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148311820 is an abundant number, since it is smaller than the sum of its proper divisors (176685524).

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

148311820 is a wasteful number, since it uses less digits than its factorization.

148311820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322449 (or 322447 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 148311820 is about 12178.3340404178. The cubic root of 148311820 is about 529.3284719264.

The spelling of 148311820 in words is "one hundred forty-eight million, three hundred eleven thousand, eight hundred twenty".