61200861 has 8 divisors (see below), whose sum is σ = 85149120. Its totient is φ = 39026592.

The previous prime is 61200859. The next prime is 61200869. The reversal of 61200861 is 16800216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61200861 - 2¹ = 61200859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61200869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443416 + ... + 443553.

It is an arithmetic number, because the mean of its divisors is an integer number (10643640).

Almost surely, 2^61200861 is an apocalyptic number.

It is an amenable number.

61200861 is a deficient number, since it is larger than the sum of its proper divisors (23948259).

61200861 is a wasteful number, since it uses less digits than its factorization.

61200861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886995.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 61200861 is about 7823.0979157876. The cubic root of 61200861 is about 394.0813152960.

The spelling of 61200861 in words is "sixty-one million, two hundred thousand, eight hundred sixty-one".