61315183 has 2 divisors, whose sum is σ = 61315184. Its totient is φ = 61315182.

The previous prime is 61315159. The next prime is 61315207. The reversal of 61315183 is 38151316.

It is a balanced prime because it is at equal distance from previous prime (61315159) and next prime (61315207).

It is a cyclic number.

It is not a de Polignac number, because 61315183 - 2⁵ = 61315151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61315783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30657591 + 30657592.

It is an arithmetic number, because the mean of its divisors is an integer number (30657592).

Almost surely, 2^61315183 is an apocalyptic number.

61315183 is a deficient number, since it is larger than the sum of its proper divisors (1).

61315183 is an equidigital number, since it uses as much as digits as its factorization.

61315183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 61315183 is about 7830.4012030036. The cubic root of 61315183 is about 394.3265413722.

Adding to 61315183 its reverse (38151316), we get a palindrome (99466499).

The spelling of 61315183 in words is "sixty-one million, three hundred fifteen thousand, one hundred eighty-three".