12571541 has 2 divisors, whose sum is σ = 12571542. Its totient is φ = 12571540.

The previous prime is 12571519. The next prime is 12571567. The reversal of 12571541 is 14517521.

It is an a-pointer prime, because the next prime (12571567) can be obtained adding 12571541 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10956100 + 1615441 = 3310^2 + 1271^2 .

It is a cyclic number.

It is not a de Polignac number, because 12571541 - 2¹⁰ = 12570517 is a prime.

It is a super-2 number, since 2×12571541² = 316087286229362, which contains 22 as substring.

It is equal to p₈₂₃₀₅₈ and since 12571541 and 823058 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12571541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12571511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6285770 + 6285771.

It is an arithmetic number, because the mean of its divisors is an integer number (6285771).

Almost surely, 2^12571541 is an apocalyptic number.

It is an amenable number.

12571541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12571541 is an equidigital number, since it uses as much as digits as its factorization.

12571541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1400, while the sum is 26.

The square root of 12571541 is about 3545.6368962430. The cubic root of 12571541 is about 232.5213515675.

The spelling of 12571541 in words is "twelve million, five hundred seventy-one thousand, five hundred forty-one".