127564241 has 4 divisors (see below), whose sum is σ = 145787712. Its totient is φ = 109340772.

The previous prime is 127564207. The next prime is 127564247. The reversal of 127564241 is 142465721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142465721 = 379 ⋅375899.

It is a cyclic number.

It is not a de Polignac number, because 127564241 - 2²² = 123369937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127564198 and 127564207.

It is not an unprimeable number, because it can be changed into a prime (127564247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9111725 + ... + 9111738.

It is an arithmetic number, because the mean of its divisors is an integer number (36446928).

Almost surely, 2^127564241 is an apocalyptic number.

It is an amenable number.

127564241 is a deficient number, since it is larger than the sum of its proper divisors (18223471).

127564241 is an equidigital number, since it uses as much as digits as its factorization.

127564241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18223470.

The product of its digits is 13440, while the sum is 32.

The square root of 127564241 is about 11294.4340717010. The cubic root of 127564241 is about 503.3958718935.

The spelling of 127564241 in words is "one hundred twenty-seven million, five hundred sixty-four thousand, two hundred forty-one".