61602065 has 12 divisors (see below), whose sum is σ = 85991796. Its totient is φ = 42241248.

The previous prime is 61602041. The next prime is 61602071. The reversal of 61602065 is 56020616.

It can be written as a sum of positive squares in 2 ways, for example, as 9314704 + 52287361 = 3052^2 + 7231^2 .

It is not a de Polignac number, because 61602065 - 2⁶ = 61602001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125474 + ... + 125963.

It is an arithmetic number, because the mean of its divisors is an integer number (7165983).

Almost surely, 2^61602065 is an apocalyptic number.

It is an amenable number.

61602065 is a deficient number, since it is larger than the sum of its proper divisors (24389731).

61602065 is a wasteful number, since it uses less digits than its factorization.

61602065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251456 (or 251449 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61602065 is about 7848.6982997182. The cubic root of 61602065 is about 394.9405775056.

The spelling of 61602065 in words is "sixty-one million, six hundred two thousand, sixty-five".