2961545065 has 4 divisors (see below), whose sum is σ = 3553854084. Its totient is φ = 2369236048.

The previous prime is 2961545057. The next prime is 2961545089. The reversal of 2961545065 is 5605451692.

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 549949401 + 2411595664 = 23451^2 + 49108^2 .

It is a cyclic number.

It is not a de Polignac number, because 2961545065 - 2³ = 2961545057 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, 296154502 + ... + 296154511.

It is an arithmetic number, because the mean of its divisors is an integer number (888463521).

Almost surely, 2^2961545065 is an apocalyptic number.

It is an amenable number.

2961545065 is a deficient number, since it is larger than the sum of its proper divisors (592309019).

2961545065 is an equidigital number, since it uses as much as digits as its factorization.

2961545065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592309018.

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 2961545065 is about 54420.0796122167. The cubic root of 2961545065 is about 1436.0606491572.

The spelling of 2961545065 in words is "two billion, nine hundred sixty-one million, five hundred forty-five thousand, sixty-five".