61440965 has 16 divisors (see below), whose sum is σ = 78217920. Its totient is φ = 46200960.

The previous prime is 61440959. The next prime is 61440991. The reversal of 61440965 is 56904416.

61440965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-61440965 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 9977 + ... + 14913.

It is an arithmetic number, because the mean of its divisors is an integer number (4888620).

Almost surely, 2^61440965 is an apocalyptic number.

It is an amenable number.

61440965 is a deficient number, since it is larger than the sum of its proper divisors (16776955).

61440965 is a wasteful number, since it uses less digits than its factorization.

61440965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 61440965 is about 7838.4287328520. The cubic root of 61440965 is about 394.5959977628.

The spelling of 61440965 in words is "sixty-one million, four hundred forty thousand, nine hundred sixty-five".