61076221 has 2 divisors, whose sum is σ = 61076222. Its totient is φ = 61076220.

The previous prime is 61076209. The next prime is 61076237. The reversal of 61076221 is 12267016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54243225 + 6832996 = 7365^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 61076221 - 2¹⁵ = 61043453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61076251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30538110 + 30538111.

It is an arithmetic number, because the mean of its divisors is an integer number (30538111).

Almost surely, 2^61076221 is an apocalyptic number.

It is an amenable number.

61076221 is a deficient number, since it is larger than the sum of its proper divisors (1).

61076221 is an equidigital number, since it uses as much as digits as its factorization.

61076221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 61076221 is about 7815.1277020916. The cubic root of 61076221 is about 393.8136084019.

The spelling of 61076221 in words is "sixty-one million, seventy-six thousand, two hundred twenty-one".