172094969 has 4 divisors (see below), whose sum is σ = 174916260. Its totient is φ = 169273680.

The previous prime is 172094959. The next prime is 172095017. The reversal of 172094969 is 969490271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969490271 = 29 ⋅33430699.

It can be written as a sum of positive squares in 2 ways, for example, as 14341369 + 157753600 = 3787^2 + 12560^2 .

It is a cyclic number.

It is not a de Polignac number, because 172094969 - 2²⁴ = 155317753 is a prime.

It is a super-2 number, since 2×172094969² = 59233356710221922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172094929) 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, 1410554 + ... + 1410675.

It is an arithmetic number, because the mean of its divisors is an integer number (43729065).

Almost surely, 2^172094969 is an apocalyptic number.

It is an amenable number.

172094969 is a deficient number, since it is larger than the sum of its proper divisors (2821291).

172094969 is an equidigital number, since it uses as much as digits as its factorization.

172094969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821290.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 172094969 is about 13118.4972081409. The cubic root of 172094969 is about 556.2321126428.

The spelling of 172094969 in words is "one hundred seventy-two million, ninety-four thousand, nine hundred sixty-nine".