61046861 has 2 divisors, whose sum is σ = 61046862. Its totient is φ = 61046860.

The previous prime is 61046857. The next prime is 61046879. The reversal of 61046861 is 16864016.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54671236 + 6375625 = 7394^2 + 2525^2 .

It is a cyclic number.

It is not a de Polignac number, because 61046861 - 2² = 61046857 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61046261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30523430 + 30523431.

It is an arithmetic number, because the mean of its divisors is an integer number (30523431).

Almost surely, 2^61046861 is an apocalyptic number.

It is an amenable number.

61046861 is a deficient number, since it is larger than the sum of its proper divisors (1).

61046861 is an equidigital number, since it uses as much as digits as its factorization.

61046861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 61046861 is about 7813.2490680894. The cubic root of 61046861 is about 393.7504948008.

The spelling of 61046861 in words is "sixty-one million, forty-six thousand, eight hundred sixty-one".