61110839 has 4 divisors (see below), whose sum is σ = 63767856. Its totient is φ = 58453824.

The previous prime is 61110823. The next prime is 61110851. The reversal of 61110839 is 93801116.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61110839 - 2⁴ = 61110823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61110899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328474 + ... + 1328519.

It is an arithmetic number, because the mean of its divisors is an integer number (15941964).

Almost surely, 2^61110839 is an apocalyptic number.

61110839 is a deficient number, since it is larger than the sum of its proper divisors (2657017).

61110839 is a wasteful number, since it uses less digits than its factorization.

61110839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657016.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 61110839 is about 7817.3421954012. The cubic root of 61110839 is about 393.8879988622.

The spelling of 61110839 in words is "sixty-one million, one hundred ten thousand, eight hundred thirty-nine".