6111574121 has 2 divisors, whose sum is σ = 6111574122. Its totient is φ = 6111574120.

The previous prime is 6111574087. The next prime is 6111574141. The reversal of 6111574121 is 1214751116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6022536025 + 89038096 = 77605^2 + 9436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6111574121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6111574141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055787060 + 3055787061.

It is an arithmetic number, because the mean of its divisors is an integer number (3055787061).

Almost surely, 2^6111574121 is an apocalyptic number.

It is an amenable number.

6111574121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6111574121 is an equidigital number, since it uses as much as digits as its factorization.

6111574121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 29.

The square root of 6111574121 is about 78176.5573621658. The cubic root of 6111574121 is about 1828.3150227298.

The spelling of 6111574121 in words is "six billion, one hundred eleven million, five hundred seventy-four thousand, one hundred twenty-one".