1241421239 has 2 divisors, whose sum is σ = 1241421240. Its totient is φ = 1241421238.

The previous prime is 1241421163. The next prime is 1241421263. The reversal of 1241421239 is 9321241421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1241421239 - 2²⁰ = 1240372663 is a prime.

It is a super-2 number, since 2×1241421239² = 3082253385280590242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241426239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620710619 + 620710620.

It is an arithmetic number, because the mean of its divisors is an integer number (620710620).

Almost surely, 2^1241421239 is an apocalyptic number.

1241421239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241421239 is an equidigital number, since it uses as much as digits as its factorization.

1241421239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 1241421239 is about 35233.8081819153. The cubic root of 1241421239 is about 1074.7473685056.

The spelling of 1241421239 in words is "one billion, two hundred forty-one million, four hundred twenty-one thousand, two hundred thirty-nine".