61189201 has 4 divisors (see below), whose sum is σ = 61212852. Its totient is φ = 61165552.

The previous prime is 61189169. The next prime is 61189207. The reversal of 61189201 is 10298116.

It is a happy number.

61189201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34398225 + 26790976 = 5865^2 + 5176^2 .

It is a cyclic number.

It is not a de Polignac number, because 61189201 - 2⁵ = 61189169 is a prime.

It is a deceptive number, since it divides R_61189200.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61189201.

It is not an unprimeable number, because it can be changed into a prime (61189207) 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 3 ways as a sum of consecutive naturals, for example, 7390 + ... + 13303.

It is an arithmetic number, because the mean of its divisors is an integer number (15303213).

Almost surely, 2^61189201 is an apocalyptic number.

It is an amenable number.

61189201 is a deficient number, since it is larger than the sum of its proper divisors (23651).

61189201 is a wasteful number, since it uses less digits than its factorization.

61189201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23650.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 61189201 is about 7822.3526512169. The cubic root of 61189201 is about 394.0562868901.

The spelling of 61189201 in words is "sixty-one million, one hundred eighty-nine thousand, two hundred one".