126897541 has 2 divisors, whose sum is σ = 126897542. Its totient is φ = 126897540.

The previous prime is 126897527. The next prime is 126897581. The reversal of 126897541 is 145798621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126652516 + 245025 = 11254^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 126897541 - 2⁷ = 126897413 is a prime.

It is a super-2 number, since 2×126897541² = 32205971823693362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126897581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63448770 + 63448771.

It is an arithmetic number, because the mean of its divisors is an integer number (63448771).

Almost surely, 2^126897541 is an apocalyptic number.

It is an amenable number.

126897541 is a deficient number, since it is larger than the sum of its proper divisors (1).

126897541 is an equidigital number, since it uses as much as digits as its factorization.

126897541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 126897541 is about 11264.8808693213. The cubic root of 126897541 is about 502.5173592016.

The spelling of 126897541 in words is "one hundred twenty-six million, eight hundred ninety-seven thousand, five hundred forty-one".