61367513 has 2 divisors, whose sum is σ = 61367514. Its totient is φ = 61367512.

The previous prime is 61367491. The next prime is 61367521. The reversal of 61367513 is 31576316.

61367513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50523664 + 10843849 = 7108^2 + 3293^2 .

It is a cyclic number.

It is not a de Polignac number, because 61367513 - 2¹² = 61363417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61367513.

It is not a weakly prime, because it can be changed into another prime (61367533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30683756 + 30683757.

It is an arithmetic number, because the mean of its divisors is an integer number (30683757).

Almost surely, 2^61367513 is an apocalyptic number.

It is an amenable number.

61367513 is a deficient number, since it is larger than the sum of its proper divisors (1).

61367513 is an equidigital number, since it uses as much as digits as its factorization.

61367513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 32.

The square root of 61367513 is about 7833.7419538813. The cubic root of 61367513 is about 394.4386899966.

The spelling of 61367513 in words is "sixty-one million, three hundred sixty-seven thousand, five hundred thirteen".