172032481 has 2 divisors, whose sum is σ = 172032482. Its totient is φ = 172032480.

The previous prime is 172032467. The next prime is 172032529. The reversal of 172032481 is 184230271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172029456 + 3025 = 13116^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 172032481 - 2¹¹ = 172030433 is a prime.

It is a super-2 number, since 2×172032481² = 59190349038030722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172032431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86016240 + 86016241.

It is an arithmetic number, because the mean of its divisors is an integer number (86016241).

Almost surely, 2^172032481 is an apocalyptic number.

It is an amenable number.

172032481 is a deficient number, since it is larger than the sum of its proper divisors (1).

172032481 is an equidigital number, since it uses as much as digits as its factorization.

172032481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 172032481 is about 13116.1153166629. The cubic root of 172032481 is about 556.1647815249.

The spelling of 172032481 in words is "one hundred seventy-two million, thirty-two thousand, four hundred eighty-one".