163013765 has 16 divisors (see below), whose sum is σ = 216131328. Its totient is φ = 117401856.

The previous prime is 163013761. The next prime is 163013791. The reversal of 163013765 is 567310361.

163013765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 163013765 - 2² = 163013761 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 (163013761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39737 + ... + 43646.

It is an arithmetic number, because the mean of its divisors is an integer number (13508208).

Almost surely, 2^163013765 is an apocalyptic number.

It is an amenable number.

163013765 is a deficient number, since it is larger than the sum of its proper divisors (53117563).

163013765 is a wasteful number, since it uses less digits than its factorization.

163013765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83428.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 163013765 is about 12767.6844024279. The cubic root of 163013765 is about 546.2709333983.

The spelling of 163013765 in words is "one hundred sixty-three million, thirteen thousand, seven hundred sixty-five".