148172218 has 16 divisors (see below), whose sum is σ = 224228160. Its totient is φ = 73432800.

The previous prime is 148172201. The next prime is 148172293. The reversal of 148172218 is 812271841.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130678 + ... + 131806.

It is an arithmetic number, because the mean of its divisors is an integer number (14014260).

Almost surely, 2^148172218 is an apocalyptic number.

148172218 is a deficient number, since it is larger than the sum of its proper divisors (76055942).

148172218 is a wasteful number, since it uses less digits than its factorization.

148172218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653.

The product of its digits is 7168, while the sum is 34.

The square root of 148172218 is about 12172.6011189063. The cubic root of 148172218 is about 529.1623388187.

The spelling of 148172218 in words is "one hundred forty-eight million, one hundred seventy-two thousand, two hundred eighteen".