61108742 has 24 divisors (see below), whose sum is σ = 97078176. Its totient is φ = 28835744.

The previous prime is 61108741. The next prime is 61108753. The reversal of 61108742 is 24780116.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61108741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78668 + ... + 79440.

It is an arithmetic number, because the mean of its divisors is an integer number (4044924).

Almost surely, 2^61108742 is an apocalyptic number.

61108742 is a deficient number, since it is larger than the sum of its proper divisors (35969434).

61108742 is a wasteful number, since it uses less digits than its factorization.

61108742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 61108742 is about 7817.2080693813. The cubic root of 61108742 is about 393.8834934280.

Adding to 61108742 its reverse (24780116), we get a palindrome (85888858).

The spelling of 61108742 in words is "sixty-one million, one hundred eight thousand, seven hundred forty-two".