61368903 has 12 divisors (see below), whose sum is σ = 91040248. Its totient is φ = 39806640.

The previous prime is 61368889. The next prime is 61368911. The reversal of 61368903 is 30986316.

It is a happy number.

61368903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-61368903 is a prime.

It is a super-5 number, since 5×61368903⁵ (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61368943) 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 11 ways as a sum of consecutive naturals, for example, 91813 + ... + 92478.

Almost surely, 2^61368903 is an apocalyptic number.

61368903 is a deficient number, since it is larger than the sum of its proper divisors (29671345).

61368903 is a wasteful number, since it uses less digits than its factorization.

61368903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184334 (or 184331 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 61368903 is about 7833.8306721552. The cubic root of 61368903 is about 394.4416680416.

The spelling of 61368903 in words is "sixty-one million, three hundred sixty-eight thousand, nine hundred three".