61356041 has 2 divisors, whose sum is σ = 61356042. Its totient is φ = 61356040.

The previous prime is 61356017. The next prime is 61356079. The reversal of 61356041 is 14065316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47554816 + 13801225 = 6896^2 + 3715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61356041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61356041.

It is not a weakly prime, because it can be changed into another prime (61356011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30678020 + 30678021.

It is an arithmetic number, because the mean of its divisors is an integer number (30678021).

Almost surely, 2^61356041 is an apocalyptic number.

It is an amenable number.

61356041 is a deficient number, since it is larger than the sum of its proper divisors (1).

61356041 is an equidigital number, since it uses as much as digits as its factorization.

61356041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61356041 is about 7833.0097025345. The cubic root of 61356041 is about 394.4141097672.

The spelling of 61356041 in words is "sixty-one million, three hundred fifty-six thousand, forty-one".