172085041 has 2 divisors, whose sum is σ = 172085042. Its totient is φ = 172085040.

The previous prime is 172085021. The next prime is 172085047. The reversal of 172085041 is 140580271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 72165025 = 9996^2 + 8495^2 .

It is a cyclic number.

It is not a de Polignac number, because 172085041 - 2⁵ = 172085009 is a prime.

It is a super-2 number, since 2×172085041² = 59226522671943362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172085047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86042520 + 86042521.

It is an arithmetic number, because the mean of its divisors is an integer number (86042521).

Almost surely, 2^172085041 is an apocalyptic number.

It is an amenable number.

172085041 is a deficient number, since it is larger than the sum of its proper divisors (1).

172085041 is an equidigital number, since it uses as much as digits as its factorization.

172085041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 172085041 is about 13118.1188056825. The cubic root of 172085041 is about 556.2214162647.

The spelling of 172085041 in words is "one hundred seventy-two million, eighty-five thousand, forty-one".