61410140 has 24 divisors (see below), whose sum is σ = 140685552. Its totient is φ = 22330880.

The previous prime is 61410133. The next prime is 61410143. The reversal of 61410140 is 4101416.

61410140 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 not an unprimeable number, because it can be changed into a prime (61410143) by changing a digit.

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, 139349 + ... + 139788.

It is an arithmetic number, because the mean of its divisors is an integer number (5861898).

Almost surely, 2^61410140 is an apocalyptic number.

It is an amenable number.

61410140 is an abundant number, since it is smaller than the sum of its proper divisors (79275412).

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

61410140 is a wasteful number, since it uses less digits than its factorization.

61410140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279157 (or 279155 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 61410140 is about 7836.4622119934. The cubic root of 61410140 is about 394.5299969747.

Adding to 61410140 its reverse (4101416), we get a palindrome (65511556).

The spelling of 61410140 in words is "sixty-one million, four hundred ten thousand, one hundred forty".