61800941 has 2 divisors, whose sum is σ = 61800942. Its totient is φ = 61800940.

The previous prime is 61800923. The next prime is 61800971. The reversal of 61800941 is 14900816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53655625 + 8145316 = 7325^2 + 2854^2 .

It is a cyclic number.

It is not a de Polignac number, because 61800941 - 2¹⁰ = 61799917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61800971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30900470 + 30900471.

It is an arithmetic number, because the mean of its divisors is an integer number (30900471).

Almost surely, 2^61800941 is an apocalyptic number.

It is an amenable number.

61800941 is a deficient number, since it is larger than the sum of its proper divisors (1).

61800941 is an equidigital number, since it uses as much as digits as its factorization.

61800941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 61800941 is about 7861.3574527559. The cubic root of 61800941 is about 395.3651294508.

The spelling of 61800941 in words is "sixty-one million, eight hundred thousand, nine hundred forty-one".