163801532 has 12 divisors (see below), whose sum is σ = 287667576. Its totient is φ = 81610800.

The previous prime is 163801513. The next prime is 163801537. The reversal of 163801532 is 235108361.

It is a junction number, because it is equal to n+sod(n) for n = 163801495 and 163801504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163801537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71219 + ... + 73482.

It is an arithmetic number, because the mean of its divisors is an integer number (23972298).

Almost surely, 2^163801532 is an apocalyptic number.

It is an amenable number.

163801532 is a deficient number, since it is larger than the sum of its proper divisors (123866044).

163801532 is a wasteful number, since it uses less digits than its factorization.

163801532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144988 (or 144986 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 163801532 is about 12798.4972555375. The cubic root of 163801532 is about 547.1494744837.

Adding to 163801532 its reverse (235108361), we get a palindrome (398909893).

The spelling of 163801532 in words is "one hundred sixty-three million, eight hundred one thousand, five hundred thirty-two".