61199000 has 64 divisors (see below), whose sum is σ = 150789600. Its totient is φ = 23184000.

The previous prime is 61198993. The next prime is 61199003. The reversal of 61199000 is 99116.

61199000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61199003) 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 15 ways as a sum of consecutive naturals, for example, 17390 + ... + 20610.

Almost surely, 2^61199000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61199000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75394800).

61199000 is an abundant number, since it is smaller than the sum of its proper divisors (89590600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61199000 is a wasteful number, since it uses less digits than its factorization.

61199000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261 (or 3247 counting only the distinct ones).

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

The square root of 61199000 is about 7822.9789722330. The cubic root of 61199000 is about 394.0773208382.

The spelling of 61199000 in words is "sixty-one million, one hundred ninety-nine thousand".