1241234569 has 2 divisors, whose sum is σ = 1241234570. Its totient is φ = 1241234568.

The previous prime is 1241234521. The next prime is 1241234573. The reversal of 1241234569 is 9654321421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1155116169 + 86118400 = 33987^2 + 9280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241234569 - 2¹¹ = 1241232521 is a prime.

It is a super-2 number, since 2×1241234569² = 3081326510561231522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1241234069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620617284 + 620617285.

It is an arithmetic number, because the mean of its divisors is an integer number (620617285).

Almost surely, 2^1241234569 is an apocalyptic number.

It is an amenable number.

1241234569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241234569 is an equidigital number, since it uses as much as digits as its factorization.

1241234569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 1241234569 is about 35231.1590641012. The cubic root of 1241234569 is about 1074.6934966096.

The spelling of 1241234569 in words is "one billion, two hundred forty-one million, two hundred thirty-four thousand, five hundred sixty-nine".