6241513121 has 2 divisors, whose sum is σ = 6241513122. Its totient is φ = 6241513120.

The previous prime is 6241513111. The next prime is 6241513133. The reversal of 6241513121 is 1213151426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6003150400 + 238362721 = 77480^2 + 15439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6241513121 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 (6241513111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3120756560 + 3120756561.

It is an arithmetic number, because the mean of its divisors is an integer number (3120756561).

Almost surely, 2^6241513121 is an apocalyptic number.

It is an amenable number.

6241513121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6241513121 is an equidigital number, since it uses as much as digits as its factorization.

6241513121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 6241513121 is about 79003.2475345159. The cubic root of 6241513121 is about 1841.1816135267.

Adding to 6241513121 its reverse (1213151426), we get a palindrome (7454664547).

The spelling of 6241513121 in words is "six billion, two hundred forty-one million, five hundred thirteen thousand, one hundred twenty-one".