163260393 has 4 divisors (see below), whose sum is σ = 217680528. Its totient is φ = 108840260.

The previous prime is 163260359. The next prime is 163260397. The reversal of 163260393 is 393062361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163260393 - 2¹² = 163256297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163260397) by changing a digit.

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, 27210063 + ... + 27210068.

It is an arithmetic number, because the mean of its divisors is an integer number (54420132).

Almost surely, 2^163260393 is an apocalyptic number.

It is an amenable number.

163260393 is a deficient number, since it is larger than the sum of its proper divisors (54420135).

163260393 is an equidigital number, since it uses as much as digits as its factorization.

163260393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54420134.

The product of its (nonzero) digits is 17496, while the sum is 33.

The square root of 163260393 is about 12777.3390422263. The cubic root of 163260393 is about 546.5462840134.

The spelling of 163260393 in words is "one hundred sixty-three million, two hundred sixty thousand, three hundred ninety-three".