61018734 has 16 divisors (see below), whose sum is σ = 139471488. Its totient is φ = 17433912.

The previous prime is 61018721. The next prime is 61018751. The reversal of 61018734 is 43781016.

It is a happy number.

61018734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 726372 + ... + 726455.

It is an arithmetic number, because the mean of its divisors is an integer number (8716968).

Almost surely, 2^61018734 is an apocalyptic number.

61018734 is an abundant number, since it is smaller than the sum of its proper divisors (78452754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61018734 is a wasteful number, since it uses less digits than its factorization.

61018734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452839.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 61018734 is about 7811.4489052928. The cubic root of 61018734 is about 393.6900127310.

The spelling of 61018734 in words is "sixty-one million, eighteen thousand, seven hundred thirty-four".