61107065 has 4 divisors (see below), whose sum is σ = 73328484. Its totient is φ = 48885648.

The previous prime is 61107049. The next prime is 61107083. The reversal of 61107065 is 56070116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35331136 + 25775929 = 5944^2 + 5077^2 .

It is a cyclic number.

It is not a de Polignac number, because 61107065 - 2⁴ = 61107049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6110702 + ... + 6110711.

It is an arithmetic number, because the mean of its divisors is an integer number (18332121).

Almost surely, 2^61107065 is an apocalyptic number.

It is an amenable number.

61107065 is a deficient number, since it is larger than the sum of its proper divisors (12221419).

61107065 is a wasteful number, since it uses less digits than its factorization.

61107065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12221418.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 61107065 is about 7817.1008052858. The cubic root of 61107065 is about 393.8798902956.

The spelling of 61107065 in words is "sixty-one million, one hundred seven thousand, sixty-five".