148440172 has 12 divisors (see below), whose sum is σ = 266106456. Its totient is φ = 72409760.

The previous prime is 148440169. The next prime is 148440181. The reversal of 148440172 is 271044841.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 452398 + ... + 452725.

It is an arithmetic number, because the mean of its divisors is an integer number (22175538).

Almost surely, 2^148440172 is an apocalyptic number.

It is an amenable number.

148440172 is a deficient number, since it is larger than the sum of its proper divisors (117666284).

148440172 is a wasteful number, since it uses less digits than its factorization.

148440172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905168 (or 905166 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 148440172 is about 12183.6025870840. The cubic root of 148440172 is about 529.4811250291.

The spelling of 148440172 in words is "one hundred forty-eight million, four hundred forty thousand, one hundred seventy-two".