163214540 has 12 divisors (see below), whose sum is σ = 342750576. Its totient is φ = 65285808.

The previous prime is 163214497. The next prime is 163214549. The reversal of 163214540 is 45412361.

It is not an unprimeable number, because it can be changed into a prime (163214549) 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, 4080344 + ... + 4080383.

It is an arithmetic number, because the mean of its divisors is an integer number (28562548).

Almost surely, 2^163214540 is an apocalyptic number.

163214540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163214540 is an abundant number, since it is smaller than the sum of its proper divisors (179536036).

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

163214540 is a wasteful number, since it uses less digits than its factorization.

163214540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8160736 (or 8160734 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 163214540 is about 12775.5446067868. The cubic root of 163214540 is about 546.4951119097.

The spelling of 163214540 in words is "one hundred sixty-three million, two hundred fourteen thousand, five hundred forty".