163265013 has 6 divisors (see below), whose sum is σ = 235827254. Its totient is φ = 108843336.

The previous prime is 163265009. The next prime is 163265021. The reversal of 163265013 is 310562361.

163265013 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 650 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 142635249 + 20629764 = 11943^2 + 4542^2 .

It is not a de Polignac number, because 163265013 - 2² = 163265009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163265033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9070270 + ... + 9070287.

Almost surely, 2^163265013 is an apocalyptic number.

It is an amenable number.

163265013 is a deficient number, since it is larger than the sum of its proper divisors (72562241).

163265013 is a wasteful number, since it uses less digits than its factorization.

163265013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140563 (or 18140560 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 163265013 is about 12777.5198297635. The cubic root of 163265013 is about 546.5514394177.

The spelling of 163265013 in words is "one hundred sixty-three million, two hundred sixty-five thousand, thirteen".