61761113 has 2 divisors, whose sum is σ = 61761114. Its totient is φ = 61761112.

The previous prime is 61761053. The next prime is 61761127. The reversal of 61761113 is 31116716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54346384 + 7414729 = 7372^2 + 2723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61761113 is a prime.

It is not a weakly prime, because it can be changed into another prime (61761163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30880556 + 30880557.

It is an arithmetic number, because the mean of its divisors is an integer number (30880557).

Almost surely, 2^61761113 is an apocalyptic number.

It is an amenable number.

61761113 is a deficient number, since it is larger than the sum of its proper divisors (1).

61761113 is an equidigital number, since it uses as much as digits as its factorization.

61761113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 26.

The square root of 61761113 is about 7858.8238941969. The cubic root of 61761113 is about 395.2801793622.

Adding to 61761113 its reverse (31116716), we get a palindrome (92877829).

The spelling of 61761113 in words is "sixty-one million, seven hundred sixty-one thousand, one hundred thirteen".