6161239321 has 2 divisors, whose sum is σ = 6161239322. Its totient is φ = 6161239320.

The previous prime is 6161239277. The next prime is 6161239339. The reversal of 6161239321 is 1239321616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3142835721 + 3018403600 = 56061^2 + 54940^2 .

It is a cyclic number.

It is not a de Polignac number, because 6161239321 - 2¹¹ = 6161237273 is a prime.

It is not a weakly prime, because it can be changed into another prime (6161239621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080619660 + 3080619661.

It is an arithmetic number, because the mean of its divisors is an integer number (3080619661).

Almost surely, 2^6161239321 is an apocalyptic number.

It is an amenable number.

6161239321 is a deficient number, since it is larger than the sum of its proper divisors (1).

6161239321 is an equidigital number, since it uses as much as digits as its factorization.

6161239321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 6161239321 is about 78493.5622901649. The cubic root of 6161239321 is about 1833.2542175850.

The spelling of 6161239321 in words is "six billion, one hundred sixty-one million, two hundred thirty-nine thousand, three hundred twenty-one".