172314147 has 4 divisors (see below), whose sum is σ = 229752200. Its totient is φ = 114876096.

The previous prime is 172314133. The next prime is 172314157. The reversal of 172314147 is 741413271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741413271 = 3 ⋅247137757.

It is not a de Polignac number, because 172314147 - 2⁶ = 172314083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172314157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28719022 + ... + 28719027.

It is an arithmetic number, because the mean of its divisors is an integer number (57438050).

Almost surely, 2^172314147 is an apocalyptic number.

172314147 is a deficient number, since it is larger than the sum of its proper divisors (57438053).

172314147 is an equidigital number, since it uses as much as digits as its factorization.

172314147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57438052.

The product of its digits is 4704, while the sum is 30.

The square root of 172314147 is about 13126.8483269976. The cubic root of 172314147 is about 556.4681492206.

The spelling of 172314147 in words is "one hundred seventy-two million, three hundred fourteen thousand, one hundred forty-seven".