172069 has 2 divisors, whose sum is σ = 172070. Its totient is φ = 172068.

The previous prime is 172049. The next prime is 172079. The reversal of 172069 is 960271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 3969 = 410^2 + 63^2 .

It is a cyclic number.

It is not a de Polignac number, because 172069 - 2¹¹ = 170021 is a prime.

It is a super-2 number, since 2×172069² = 59215481522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86034 + 86035.

It is an arithmetic number, because the mean of its divisors is an integer number (86035).

2¹⁷²⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

172069 is a deficient number, since it is larger than the sum of its proper divisors (1).

172069 is an equidigital number, since it uses as much as digits as its factorization.

172069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 172069 is about 414.8120056122. The cubic root of 172069 is about 55.6204132901.

The spelling of 172069 in words is "one hundred seventy-two thousand, sixty-nine".