61293013 has 2 divisors, whose sum is σ = 61293014. Its totient is φ = 61293012.

The previous prime is 61292981. The next prime is 61293047. The reversal of 61293013 is 31039216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51008164 + 10284849 = 7142^2 + 3207^2 .

It is a cyclic number.

It is not a de Polignac number, because 61293013 - 2⁵ = 61292981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61293083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30646506 + 30646507.

It is an arithmetic number, because the mean of its divisors is an integer number (30646507).

Almost surely, 2^61293013 is an apocalyptic number.

It is an amenable number.

61293013 is a deficient number, since it is larger than the sum of its proper divisors (1).

61293013 is an equidigital number, since it uses as much as digits as its factorization.

61293013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 61293013 is about 7828.9854387398. The cubic root of 61293013 is about 394.2790095166.

The spelling of 61293013 in words is "sixty-one million, two hundred ninety-three thousand, thirteen".