172457533 has 2 divisors, whose sum is σ = 172457534. Its totient is φ = 172457532.

The previous prime is 172457501. The next prime is 172457567. The reversal of 172457533 is 335754271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160326244 + 12131289 = 12662^2 + 3483^2 .

It is a cyclic number.

It is not a de Polignac number, because 172457533 - 2⁵ = 172457501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172457492 and 172457501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172157533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86228766 + 86228767.

It is an arithmetic number, because the mean of its divisors is an integer number (86228767).

Almost surely, 2^172457533 is an apocalyptic number.

It is an amenable number.

172457533 is a deficient number, since it is larger than the sum of its proper divisors (1).

172457533 is an equidigital number, since it uses as much as digits as its factorization.

172457533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 37.

The square root of 172457533 is about 13132.3087459898. The cubic root of 172457533 is about 556.6224558017.

The spelling of 172457533 in words is "one hundred seventy-two million, four hundred fifty-seven thousand, five hundred thirty-three".