172528584139 has 2 divisors, whose sum is σ = 172528584140. Its totient is φ = 172528584138.

The previous prime is 172528584071. The next prime is 172528584197. The reversal of 172528584139 is 931485825271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172528584139 - 2¹⁷ = 172528453067 is a prime.

It is a super-2 number, since 2×172528584139² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172528584139.

It is not a weakly prime, because it can be changed into another prime (172528588139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86264292069 + 86264292070.

It is an arithmetic number, because the mean of its divisors is an integer number (86264292070).

Almost surely, 2^172528584139 is an apocalyptic number.

172528584139 is a deficient number, since it is larger than the sum of its proper divisors (1).

172528584139 is an equidigital number, since it uses as much as digits as its factorization.

172528584139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 55.

The spelling of 172528584139 in words is "one hundred seventy-two billion, five hundred twenty-eight million, five hundred eighty-four thousand, one hundred thirty-nine".