163513533 has 16 divisors (see below), whose sum is σ = 223015680. Its totient is φ = 106526784.

The previous prime is 163513501. The next prime is 163513573. The reversal of 163513533 is 335315361.

It is not a de Polignac number, because 163513533 - 2⁵ = 163513501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163513533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163513573) 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, 40860 + ... + 44682.

It is an arithmetic number, because the mean of its divisors is an integer number (13938480).

Almost surely, 2^163513533 is an apocalyptic number.

It is an amenable number.

163513533 is a deficient number, since it is larger than the sum of its proper divisors (59502147).

163513533 is a wasteful number, since it uses less digits than its factorization.

163513533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148.

The product of its digits is 12150, while the sum is 30.

The square root of 163513533 is about 12787.2410237705. The cubic root of 163513533 is about 546.8286167921.

Adding to 163513533 its reverse (335315361), we get a palindrome (498828894).

The spelling of 163513533 in words is "one hundred sixty-three million, five hundred thirteen thousand, five hundred thirty-three".