172212041 has 2 divisors, whose sum is σ = 172212042. Its totient is φ = 172212040.

The previous prime is 172211981. The next prime is 172212049. The reversal of 172212041 is 140212271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124657225 + 47554816 = 11165^2 + 6896^2 .

It is a cyclic number.

It is not a de Polignac number, because 172212041 - 2¹⁴ = 172195657 is a prime.

It is not a weakly prime, because it can be changed into another prime (172212049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86106020 + 86106021.

It is an arithmetic number, because the mean of its divisors is an integer number (86106021).

Almost surely, 2^172212041 is an apocalyptic number.

It is an amenable number.

172212041 is a deficient number, since it is larger than the sum of its proper divisors (1).

172212041 is an equidigital number, since it uses as much as digits as its factorization.

172212041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 172212041 is about 13122.9585459987. The cubic root of 172212041 is about 556.3582144216.

The spelling of 172212041 in words is "one hundred seventy-two million, two hundred twelve thousand, forty-one".