163153273 has 4 divisors (see below), whose sum is σ = 163201168. Its totient is φ = 163105380.

The previous prime is 163153261. The next prime is 163153297. The reversal of 163153273 is 372351361.

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, and also an emirpimes, since its reverse is a distinct semiprime: 372351361 = 67 ⋅5557483.

It is a cyclic number.

It is not a de Polignac number, because 163153273 - 2²¹ = 161056121 is a prime.

It is a super-2 number, since 2×163153273² = 53237980981225058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163153373) 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, 18411 + ... + 25792.

It is an arithmetic number, because the mean of its divisors is an integer number (40800292).

Almost surely, 2^163153273 is an apocalyptic number.

It is an amenable number.

163153273 is a deficient number, since it is larger than the sum of its proper divisors (47895).

163153273 is an equidigital number, since it uses as much as digits as its factorization.

163153273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47894.

The product of its digits is 11340, while the sum is 31.

The square root of 163153273 is about 12773.1465583074. The cubic root of 163153273 is about 546.4267227691.

The spelling of 163153273 in words is "one hundred sixty-three million, one hundred fifty-three thousand, two hundred seventy-three".