2567440123 has 2 divisors, whose sum is σ = 2567440124. Its totient is φ = 2567440122.

The previous prime is 2567440111. The next prime is 2567440153. The reversal of 2567440123 is 3210447652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2567440123 - 2²¹ = 2565342971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2567440153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283720061 + 1283720062.

It is an arithmetic number, because the mean of its divisors is an integer number (1283720062).

Almost surely, 2^2567440123 is an apocalyptic number.

2567440123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2567440123 is an equidigital number, since it uses as much as digits as its factorization.

2567440123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 2567440123 is about 50669.9133904924. The cubic root of 2567440123 is about 1369.3047288177.

Adding to 2567440123 its reverse (3210447652), we get a palindrome (5777887775).

The spelling of 2567440123 in words is "two billion, five hundred sixty-seven million, four hundred forty thousand, one hundred twenty-three".