6102249721 has 2 divisors, whose sum is σ = 6102249722. Its totient is φ = 6102249720.

The previous prime is 6102249691. The next prime is 6102249731. The reversal of 6102249721 is 1279422016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3151587321 + 2950662400 = 56139^2 + 54320^2 .

It is a cyclic number.

It is not a de Polignac number, because 6102249721 - 2⁵ = 6102249689 is a prime.

It is not a weakly prime, because it can be changed into another prime (6102249731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3051124860 + 3051124861.

It is an arithmetic number, because the mean of its divisors is an integer number (3051124861).

Almost surely, 2^6102249721 is an apocalyptic number.

It is an amenable number.

6102249721 is a deficient number, since it is larger than the sum of its proper divisors (1).

6102249721 is an equidigital number, since it uses as much as digits as its factorization.

6102249721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 6102249721 is about 78116.8977942673. The cubic root of 6102249721 is about 1827.3847322348.

The spelling of 6102249721 in words is "six billion, one hundred two million, two hundred forty-nine thousand, seven hundred twenty-one".