61110851 has 2 divisors, whose sum is σ = 61110852. Its totient is φ = 61110850.

The previous prime is 61110823. The next prime is 61110883. The reversal of 61110851 is 15801116.

It is a happy number.

61110851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61110851 is a prime.

It is a super-2 number, since 2×61110851² = 7469072219888402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61110551) 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 as a sum of consecutive naturals, namely, 30555425 + 30555426.

It is an arithmetic number, because the mean of its divisors is an integer number (30555426).

Almost surely, 2^61110851 is an apocalyptic number.

61110851 is a deficient number, since it is larger than the sum of its proper divisors (1).

61110851 is an equidigital number, since it uses as much as digits as its factorization.

61110851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 61110851 is about 7817.3429629254. The cubic root of 61110851 is about 393.8880246440. Note that the first 3 decimals are identical.

Adding to 61110851 its reverse (15801116), we get a palindrome (76911967).

The spelling of 61110851 in words is "sixty-one million, one hundred ten thousand, eight hundred fifty-one".