61118 has 4 divisors (see below), whose sum is σ = 91680. Its totient is φ = 30558.

The previous prime is 61099. The next prime is 61121. The reversal of 61118 is 81116.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 61096 and 61105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15278 + ... + 15281.

It is an arithmetic number, because the mean of its divisors is an integer number (22920).

2⁶¹¹¹⁸ is an apocalyptic number.

61118 is a deficient number, since it is larger than the sum of its proper divisors (30562).

61118 is a wasteful number, since it uses less digits than its factorization.

61118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30561.

The product of its digits is 48, while the sum is 17.

The square root of 61118 is about 247.2205493077. The cubic root of 61118 is about 39.3903383595.

The spelling of 61118 in words is "sixty-one thousand, one hundred eighteen".