61410645 has 24 divisors (see below), whose sum is σ = 106920216. Its totient is φ = 32606208.

The previous prime is 61410637. The next prime is 61410649. The reversal of 61410645 is 54601416.

61410645 is a `hidden beast` number, since 6 + 1 + 4 + 10 + 645 = 666.

61410645 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 4 ways, for example, as 11029041 + 50381604 = 3321^2 + 7098^2 .

It is not a de Polignac number, because 61410645 - 2³ = 61410637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61410649) 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 23 ways as a sum of consecutive naturals, for example, 7557 + ... + 13413.

It is an arithmetic number, because the mean of its divisors is an integer number (4455009).

Almost surely, 2^61410645 is an apocalyptic number.

It is an amenable number.

61410645 is a deficient number, since it is larger than the sum of its proper divisors (45509571).

61410645 is a wasteful number, since it uses less digits than its factorization.

61410645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101 (or 6098 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 61410645 is about 7836.4944330995. The cubic root of 61410645 is about 394.5310784308.

It can be divided in two parts, 61410 and 645, that multiplied together give a triangular number (39609450 = T₈₉₀₀).

The spelling of 61410645 in words is "sixty-one million, four hundred ten thousand, six hundred forty-five".