61396249 has 2 divisors, whose sum is σ = 61396250. Its totient is φ = 61396248.

The previous prime is 61396211. The next prime is 61396253. The reversal of 61396249 is 94269316.

61396249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41370624 + 20025625 = 6432^2 + 4475^2 .

It is a cyclic number.

It is not a de Polignac number, because 61396249 - 2¹³ = 61388057 is a prime.

It is not a weakly prime, because it can be changed into another prime (61396849) 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, 30698124 + 30698125.

It is an arithmetic number, because the mean of its divisors is an integer number (30698125).

Almost surely, 2^61396249 is an apocalyptic number.

It is an amenable number.

61396249 is a deficient number, since it is larger than the sum of its proper divisors (1).

61396249 is an equidigital number, since it uses as much as digits as its factorization.

61396249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 61396249 is about 7835.5758563108. The cubic root of 61396249 is about 394.5002471133.

The spelling of 61396249 in words is "sixty-one million, three hundred ninety-six thousand, two hundred forty-nine".