12575861 has 2 divisors, whose sum is σ = 12575862. Its totient is φ = 12575860.

The previous prime is 12575851. The next prime is 12575867. The reversal of 12575861 is 16857521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12567025 + 8836 = 3545^2 + 94^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12575861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12575867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6287930 + 6287931.

It is an arithmetic number, because the mean of its divisors is an integer number (6287931).

Almost surely, 2^12575861 is an apocalyptic number.

It is an amenable number.

12575861 is a deficient number, since it is larger than the sum of its proper divisors (1).

12575861 is an equidigital number, since it uses as much as digits as its factorization.

12575861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 35.

The square root of 12575861 is about 3546.2460433535. The cubic root of 12575861 is about 232.5479825430.

The spelling of 12575861 in words is "twelve million, five hundred seventy-five thousand, eight hundred sixty-one".