61224199 has 2 divisors, whose sum is σ = 61224200. Its totient is φ = 61224198.

The previous prime is 61224197. The next prime is 61224211. The reversal of 61224199 is 99142216.

61224199 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 is a cyclic number.

It is not a de Polignac number, because 61224199 - 2¹ = 61224197 is a prime.

Together with 61224197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61224197) 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, 30612099 + 30612100.

It is an arithmetic number, because the mean of its divisors is an integer number (30612100).

Almost surely, 2^61224199 is an apocalyptic number.

61224199 is a deficient number, since it is larger than the sum of its proper divisors (1).

61224199 is an equidigital number, since it uses as much as digits as its factorization.

61224199 is an odious number, because the sum of its binary digits is odd.

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

The square root of 61224199 is about 7824.5893821976. The cubic root of 61224199 is about 394.1314011977.

The spelling of 61224199 in words is "sixty-one million, two hundred twenty-four thousand, one hundred ninety-nine".