61084013 has 2 divisors, whose sum is σ = 61084014. Its totient is φ = 61084012.

The previous prime is 61084007. The next prime is 61084033. The reversal of 61084013 is 31048016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53260804 + 7823209 = 7298^2 + 2797^2 .

It is a cyclic number.

It is not a de Polignac number, because 61084013 - 2⁶ = 61083949 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 61084013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61084033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30542006 + 30542007.

It is an arithmetic number, because the mean of its divisors is an integer number (30542007).

Almost surely, 2^61084013 is an apocalyptic number.

It is an amenable number.

61084013 is a deficient number, since it is larger than the sum of its proper divisors (1).

61084013 is an equidigital number, since it uses as much as digits as its factorization.

61084013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 61084013 is about 7815.6262065173. The cubic root of 61084013 is about 393.8303550457.

The spelling of 61084013 in words is "sixty-one million, eighty-four thousand, thirteen".