163236530 has 16 divisors (see below), whose sum is σ = 295049304. Its totient is φ = 65022720.

The previous prime is 163236527. The next prime is 163236551. The reversal of 163236530 is 35632361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 152497801 + 10738729 = 12349^2 + 3277^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163236493 and 163236502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31457 + ... + 36276.

Almost surely, 2^163236530 is an apocalyptic number.

163236530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163236530 is a deficient number, since it is larger than the sum of its proper divisors (131812774).

163236530 is a wasteful number, since it uses less digits than its factorization.

163236530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67981.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 163236530 is about 12776.4052064734. The cubic root of 163236530 is about 546.5196540202.

Adding to 163236530 its reverse (35632361), we get a palindrome (198868891).

The spelling of 163236530 in words is "one hundred sixty-three million, two hundred thirty-six thousand, five hundred thirty".