163268540 has 12 divisors (see below), whose sum is σ = 342863976. Its totient is φ = 65307408.

The previous prime is 163268503. The next prime is 163268551. The reversal of 163268540 is 45862361.

It is a self number, because there is not a number n which added to its sum of digits gives 163268540.

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 3 ways as a sum of consecutive naturals, for example, 4081694 + ... + 4081733.

It is an arithmetic number, because the mean of its divisors is an integer number (28571998).

Almost surely, 2^163268540 is an apocalyptic number.

163268540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163268540 is an abundant number, since it is smaller than the sum of its proper divisors (179595436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163268540 is a wasteful number, since it uses less digits than its factorization.

163268540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8163436 (or 8163434 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 163268540 is about 12777.6578448478. The cubic root of 163268540 is about 546.5553750906. Note that the first 3 decimals are identical.

The spelling of 163268540 in words is "one hundred sixty-three million, two hundred sixty-eight thousand, five hundred forty".