61098219 has 64 divisors (see below), whose sum is σ = 113146880. Its totient is φ = 32122656.

The previous prime is 61098181. The next prime is 61098229. The reversal of 61098219 is 91289016.

61098219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61098219 - 2¹¹ = 61096171 is a prime.

It is a super-2 number, since 2×61098219² = 7465984729943922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61098229) 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 in 63 ways as a sum of consecutive naturals, for example, 198864 + ... + 199170.

It is an arithmetic number, because the mean of its divisors is an integer number (1767920).

Almost surely, 2^61098219 is an apocalyptic number.

61098219 is a deficient number, since it is larger than the sum of its proper divisors (52048661).

61098219 is an equidigital number, since it uses as much as digits as its factorization.

61098219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 61098219 is about 7816.5349740150. The cubic root of 61098219 is about 393.8608830573.

The spelling of 61098219 in words is "sixty-one million, ninety-eight thousand, two hundred nineteen".