172044263 has 2 divisors, whose sum is σ = 172044264. Its totient is φ = 172044262.

The previous prime is 172044251. The next prime is 172044293. The reversal of 172044263 is 362440271.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172044263 is a prime.

It is a super-4 number, since 4×172044263⁴ (a number of 34 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172044293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86022131 + 86022132.

It is an arithmetic number, because the mean of its divisors is an integer number (86022132).

Almost surely, 2^172044263 is an apocalyptic number.

172044263 is a deficient number, since it is larger than the sum of its proper divisors (1).

172044263 is an equidigital number, since it uses as much as digits as its factorization.

172044263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 172044263 is about 13116.5644511053. The cubic root of 172044263 is about 556.1774779332.

The spelling of 172044263 in words is "one hundred seventy-two million, forty-four thousand, two hundred sixty-three".