61190449 has 2 divisors, whose sum is σ = 61190450. Its totient is φ = 61190448.

The previous prime is 61190447. The next prime is 61190471. The reversal of 61190449 is 94409116.

61190449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52664049 + 8526400 = 7257^2 + 2920^2 .

It is a cyclic number.

It is not a de Polignac number, because 61190449 - 2¹ = 61190447 is a prime.

Together with 61190447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61190447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30595224 + 30595225.

It is an arithmetic number, because the mean of its divisors is an integer number (30595225).

Almost surely, 2^61190449 is an apocalyptic number.

It is an amenable number.

61190449 is a deficient number, since it is larger than the sum of its proper divisors (1).

61190449 is an equidigital number, since it uses as much as digits as its factorization.

61190449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 61190449 is about 7822.4324222073. The cubic root of 61190449 is about 394.0589658971.

The spelling of 61190449 in words is "sixty-one million, one hundred ninety thousand, four hundred forty-nine".