172383071 has 4 divisors (see below), whose sum is σ = 197009232. Its totient is φ = 147756912.

The previous prime is 172383059. The next prime is 172383097. The reversal of 172383071 is 170383271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172383071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172383041) 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, 12313070 + ... + 12313083.

It is an arithmetic number, because the mean of its divisors is an integer number (49252308).

Almost surely, 2^172383071 is an apocalyptic number.

172383071 is a deficient number, since it is larger than the sum of its proper divisors (24626161).

172383071 is an equidigital number, since it uses as much as digits as its factorization.

172383071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24626160.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 172383071 is about 13129.4733710077. The cubic root of 172383071 is about 556.5423332981.

The spelling of 172383071 in words is "one hundred seventy-two million, three hundred eighty-three thousand, seventy-one".