1141257641 has 2 divisors, whose sum is σ = 1141257642. Its totient is φ = 1141257640.

The previous prime is 1141257589. The next prime is 1141257647. The reversal of 1141257641 is 1467521411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719366041 + 421891600 = 26821^2 + 20540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141257641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1141257598 and 1141257607.

It is not a weakly prime, because it can be changed into another prime (1141257647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570628820 + 570628821.

It is an arithmetic number, because the mean of its divisors is an integer number (570628821).

Almost surely, 2^1141257641 is an apocalyptic number.

It is an amenable number.

1141257641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141257641 is an equidigital number, since it uses as much as digits as its factorization.

1141257641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 1141257641 is about 33782.5049544879. The cubic root of 1141257641 is about 1045.0279339007.

The spelling of 1141257641 in words is "one billion, one hundred forty-one million, two hundred fifty-seven thousand, six hundred forty-one".