1241279879 has 16 divisors (see below), whose sum is σ = 1455632640. Its totient is φ = 1036271040.

The previous prime is 1241279849. The next prime is 1241279881. The reversal of 1241279879 is 9789721421.

It is a de Polignac number, because none of the positive numbers 2^k-1241279879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241279849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185852 + ... + 192414.

It is an arithmetic number, because the mean of its divisors is an integer number (90977040).

Almost surely, 2^1241279879 is an apocalyptic number.

1241279879 is a deficient number, since it is larger than the sum of its proper divisors (214352761).

1241279879 is an equidigital number, since it uses as much as digits as its factorization.

1241279879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270.

The product of its digits is 508032, while the sum is 50.

The square root of 1241279879 is about 35231.8020969692. The cubic root of 1241279879 is about 1074.7065733132.

The spelling of 1241279879 in words is "one billion, two hundred forty-one million, two hundred seventy-nine thousand, eight hundred seventy-nine".