654172573 has 2 divisors, whose sum is σ = 654172574. Its totient is φ = 654172572.

The previous prime is 654172511. The next prime is 654172583. The reversal of 654172573 is 375271456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371024644 + 283147929 = 19262^2 + 16827^2 .

It is a cyclic number.

It is not a de Polignac number, because 654172573 - 2²⁹ = 117301661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654172583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327086286 + 327086287.

It is an arithmetic number, because the mean of its divisors is an integer number (327086287).

Almost surely, 2^654172573 is an apocalyptic number.

It is an amenable number.

654172573 is a deficient number, since it is larger than the sum of its proper divisors (1).

654172573 is an equidigital number, since it uses as much as digits as its factorization.

654172573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 176400, while the sum is 40.

The square root of 654172573 is about 25576.7975516873. The cubic root of 654172573 is about 868.0887152099.

The spelling of 654172573 in words is "six hundred fifty-four million, one hundred seventy-two thousand, five hundred seventy-three".