61134660 has 36 divisors (see below), whose sum is σ = 185442348. Its totient is φ = 16302528.

The previous prime is 61134631. The next prime is 61134677. The reversal of 61134660 is 6643116.

61134660 is a `hidden beast` number, since 611 + 3 + 46 + 6 + 0 = 666.

61134660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36869184 + 24265476 = 6072^2 + 4926^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 169639 + ... + 169998.

Almost surely, 2^61134660 is an apocalyptic number.

61134660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61134660 is an abundant number, since it is smaller than the sum of its proper divisors (124307688).

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

61134660 is a wasteful number, since it uses less digits than its factorization.

61134660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339652 (or 339647 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61134660 is about 7818.8656466268. The cubic root of 61134660 is about 393.9391713835.

Adding to 61134660 its reverse (6643116), we get a palindrome (67777776).

The spelling of 61134660 in words is "sixty-one million, one hundred thirty-four thousand, six hundred sixty".