172153 has 2 divisors, whose sum is σ = 172154. Its totient is φ = 172152.

The previous prime is 172147. The next prime is 172157. The reversal of 172153 is 351271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150544 + 21609 = 388^2 + 147^2 .

It is a cyclic number.

It is not a de Polignac number, because 172153 - 2⁹ = 171641 is a prime.

172153 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 172153.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86076 + 86077.

It is an arithmetic number, because the mean of its divisors is an integer number (86077).

2¹⁷²¹⁵³ is an apocalyptic number.

It is an amenable number.

172153 is a deficient number, since it is larger than the sum of its proper divisors (1).

172153 is an equidigital number, since it uses as much as digits as its factorization.

172153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 210, while the sum is 19.

The square root of 172153 is about 414.9132439438. The cubic root of 172153 is about 55.6294626727.

It can be divided in two parts, 172 and 153, that added together give a triangular number (325 = T₂₅).

The spelling of 172153 in words is "one hundred seventy-two thousand, one hundred fifty-three".