61293613 has 2 divisors, whose sum is σ = 61293614. Its totient is φ = 61293612.

The previous prime is 61293581. The next prime is 61293637. The reversal of 61293613 is 31639216.

61293613 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., 61261929 + 31684 = 7827^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 61293613 - 2⁵ = 61293581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61293013) 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, 30646806 + 30646807.

It is an arithmetic number, because the mean of its divisors is an integer number (30646807).

Almost surely, 2^61293613 is an apocalyptic number.

It is an amenable number.

61293613 is a deficient number, since it is larger than the sum of its proper divisors (1).

61293613 is an equidigital number, since it uses as much as digits as its factorization.

61293613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 61293613 is about 7829.0237577874. The cubic root of 61293613 is about 394.2802960506.

The spelling of 61293613 in words is "sixty-one million, two hundred ninety-three thousand, six hundred thirteen".