61121393 has 2 divisors, whose sum is σ = 61121394. Its totient is φ = 61121392.

The previous prime is 61121387. The next prime is 61121399. The reversal of 61121393 is 39312116.

61121393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (61121387) and next prime (61121399).

It can be written as a sum of positive squares in only one way, i.e., 60403984 + 717409 = 7772^2 + 847^2 .

It is a cyclic number.

It is not a de Polignac number, because 61121393 - 2¹⁰ = 61120369 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (61121399) 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, 30560696 + 30560697.

It is an arithmetic number, because the mean of its divisors is an integer number (30560697).

Almost surely, 2^61121393 is an apocalyptic number.

It is an amenable number.

61121393 is a deficient number, since it is larger than the sum of its proper divisors (1).

61121393 is an equidigital number, since it uses as much as digits as its factorization.

61121393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 61121393 is about 7818.0172038695. The cubic root of 61121393 is about 393.9106727157.

The spelling of 61121393 in words is "sixty-one million, one hundred twenty-one thousand, three hundred ninety-three".