1241142449 has 2 divisors, whose sum is σ = 1241142450. Its totient is φ = 1241142448.

The previous prime is 1241142431. The next prime is 1241142457. The reversal of 1241142449 is 9442411421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075840000 + 165302449 = 32800^2 + 12857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241142449 - 2²⁰ = 1240093873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1241142479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620571224 + 620571225.

It is an arithmetic number, because the mean of its divisors is an integer number (620571225).

Almost surely, 2^1241142449 is an apocalyptic number.

It is an amenable number.

1241142449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241142449 is an equidigital number, since it uses as much as digits as its factorization.

1241142449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 32.

The square root of 1241142449 is about 35229.8516743968. The cubic root of 1241142449 is about 1074.6669093132. Note that the first 3 decimals are identical.

The spelling of 1241142449 in words is "one billion, two hundred forty-one million, one hundred forty-two thousand, four hundred forty-nine".