61199 has 4 divisors (see below), whose sum is σ = 64440. Its totient is φ = 57960.

The previous prime is 61169. The next prime is 61211. The reversal of 61199 is 99116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61199 - 2⁸ = 60943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (16110).

2⁶¹¹⁹⁹ is an apocalyptic number.

61199 is a deficient number, since it is larger than the sum of its proper divisors (3241).

61199 is a wasteful number, since it uses less digits than its factorization.

61199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240.

The product of its digits is 486, while the sum is 26.

The square root of 61199 is about 247.3843163986. The cubic root of 61199 is about 39.4077320838.

The spelling of 61199 in words is "sixty-one thousand, one hundred ninety-nine".