2173012529 has 2 divisors, whose sum is σ = 2173012530. Its totient is φ = 2173012528.

The previous prime is 2173012489. The next prime is 2173012547. The reversal of 2173012529 is 9252103712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119036304 + 1053976225 = 33452^2 + 32465^2 .

It is a cyclic number.

It is not a de Polignac number, because 2173012529 - 2¹² = 2173008433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2173012495 and 2173012504.

It is not a weakly prime, because it can be changed into another prime (2173012559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086506264 + 1086506265.

It is an arithmetic number, because the mean of its divisors is an integer number (1086506265).

Almost surely, 2^2173012529 is an apocalyptic number.

It is an amenable number.

2173012529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173012529 is an equidigital number, since it uses as much as digits as its factorization.

2173012529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 2173012529 is about 46615.5824698137. The cubic root of 2173012529 is about 1295.2514191117.

The spelling of 2173012529 in words is "two billion, one hundred seventy-three million, twelve thousand, five hundred twenty-nine".