172528584197 has 2 divisors, whose sum is σ = 172528584198. Its totient is φ = 172528584196.

The previous prime is 172528584139. The next prime is 172528584223. The reversal of 172528584197 is 791485825271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171794499361 + 734084836 = 414481^2 + 27094^2 .

It is a cyclic number.

It is not a de Polignac number, because 172528584197 - 2³⁰ = 171454842373 is a prime.

It is a super-2 number, since 2×172528584197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172528584997) 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, 86264292098 + 86264292099.

It is an arithmetic number, because the mean of its divisors is an integer number (86264292099).

Almost surely, 2^172528584197 is an apocalyptic number.

It is an amenable number.

172528584197 is a deficient number, since it is larger than the sum of its proper divisors (1).

172528584197 is an equidigital number, since it uses as much as digits as its factorization.

172528584197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11289600, while the sum is 59.

The spelling of 172528584197 in words is "one hundred seventy-two billion, five hundred twenty-eight million, five hundred eighty-four thousand, one hundred ninety-seven".