1541132344561 has 2 divisors, whose sum is σ = 1541132344562. Its totient is φ = 1541132344560.

The previous prime is 1541132344513. The next prime is 1541132344607. The reversal of 1541132344561 is 1654432311451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1521435906225 + 19696438336 = 1233465^2 + 140344^2 .

It is a cyclic number.

It is not a de Polignac number, because 1541132344561 - 2¹⁵ = 1541132311793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1541132344261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770566172280 + 770566172281.

It is an arithmetic number, because the mean of its divisors is an integer number (770566172281).

Almost surely, 2^{1541132344561} is an apocalyptic number.

It is an amenable number.

1541132344561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1541132344561 is an equidigital number, since it uses as much as digits as its factorization.

1541132344561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The spelling of 1541132344561 in words is "one trillion, five hundred forty-one billion, one hundred thirty-two million, three hundred forty-four thousand, five hundred sixty-one".