172252123 has 2 divisors, whose sum is σ = 172252124. Its totient is φ = 172252122.

The previous prime is 172252103. The next prime is 172252127. The reversal of 172252123 is 321252271.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172252123 is a prime.

It is not a weakly prime, because it can be changed into another prime (172252127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86126061 + 86126062.

It is an arithmetic number, because the mean of its divisors is an integer number (86126062).

Almost surely, 2^172252123 is an apocalyptic number.

172252123 is a deficient number, since it is larger than the sum of its proper divisors (1).

172252123 is an equidigital number, since it uses as much as digits as its factorization.

172252123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 172252123 is about 13124.4856280161. The cubic root of 172252123 is about 556.4013748184.

The spelling of 172252123 in words is "one hundred seventy-two million, two hundred fifty-two thousand, one hundred twenty-three".