6161325539 has 2 divisors, whose sum is σ = 6161325540. Its totient is φ = 6161325538.

The previous prime is 6161325497. The next prime is 6161325593. The reversal of 6161325539 is 9355231616.

Together with next prime (6161325593) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6161325539 - 2²⁸ = 5892890083 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 6161325496 and 6161325505.

It is not a weakly prime, because it can be changed into another prime (6161325839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080662769 + 3080662770.

It is an arithmetic number, because the mean of its divisors is an integer number (3080662770).

Almost surely, 2^6161325539 is an apocalyptic number.

6161325539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6161325539 is an equidigital number, since it uses as much as digits as its factorization.

6161325539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 41.

The square root of 6161325539 is about 78494.1114925190. Note that the first 3 decimals coincide. The cubic root of 6161325539 is about 1833.2627688286.

The spelling of 6161325539 in words is "six billion, one hundred sixty-one million, three hundred twenty-five thousand, five hundred thirty-nine".