148572217 has 8 divisors (see below), whose sum is σ = 152395776. Its totient is φ = 144776352.

The previous prime is 148572187. The next prime is 148572251. The reversal of 148572217 is 712275841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 148572217 - 2²³ = 140183609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148572517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4168 + ... + 17734.

It is an arithmetic number, because the mean of its divisors is an integer number (19049472).

Almost surely, 2^148572217 is an apocalyptic number.

It is an amenable number.

148572217 is a deficient number, since it is larger than the sum of its proper divisors (3823559).

148572217 is a wasteful number, since it uses less digits than its factorization.

148572217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13847.

The product of its digits is 31360, while the sum is 37.

The square root of 148572217 is about 12189.0203461968. The cubic root of 148572217 is about 529.6380785307.

The spelling of 148572217 in words is "one hundred forty-eight million, five hundred seventy-two thousand, two hundred seventeen".