163311125 has 8 divisors (see below), whose sum is σ = 203812440. Its totient is φ = 130648800.

The previous prime is 163311101. The next prime is 163311133. The reversal of 163311125 is 521113361.

It can be written as a sum of positive squares in 4 ways, for example, as 1868689 + 161442436 = 1367^2 + 12706^2 .

It is not a de Polignac number, because 163311125 - 2⁸ = 163310869 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163311125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653120 + ... + 653369.

It is an arithmetic number, because the mean of its divisors is an integer number (25476555).

Almost surely, 2^163311125 is an apocalyptic number.

It is an amenable number.

163311125 is a deficient number, since it is larger than the sum of its proper divisors (40501315).

163311125 is an equidigital number, since it uses as much as digits as its factorization.

163311125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306504 (or 1306494 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 163311125 is about 12779.3241214080. The cubic root of 163311125 is about 546.6028899340.

Adding to 163311125 its reverse (521113361), we get a palindrome (684424486).

The spelling of 163311125 in words is "one hundred sixty-three million, three hundred eleven thousand, one hundred twenty-five".