12571567 has 2 divisors, whose sum is σ = 12571568. Its totient is φ = 12571566.

The previous prime is 12571541. The next prime is 12571579. The reversal of 12571567 is 76517521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12571567 - 2⁷ = 12571439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12571067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6285783 + 6285784.

It is an arithmetic number, because the mean of its divisors is an integer number (6285784).

Almost surely, 2^12571567 is an apocalyptic number.

12571567 is a deficient number, since it is larger than the sum of its proper divisors (1).

12571567 is an equidigital number, since it uses as much as digits as its factorization.

12571567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14700, while the sum is 34.

The square root of 12571567 is about 3545.6405627192. The cubic root of 12571567 is about 232.5215118647.

The spelling of 12571567 in words is "twelve million, five hundred seventy-one thousand, five hundred sixty-seven".