163270949 has 4 divisors (see below), whose sum is σ = 163304736. Its totient is φ = 163237164.

The previous prime is 163270937. The next prime is 163270963. The reversal of 163270949 is 949072361.

163270949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 163270949 - 2²⁰ = 162222373 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163270909) 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, 8129 + ... + 19814.

It is an arithmetic number, because the mean of its divisors is an integer number (40826184).

Almost surely, 2^163270949 is an apocalyptic number.

It is an amenable number.

163270949 is a deficient number, since it is larger than the sum of its proper divisors (33787).

163270949 is an equidigital number, since it uses as much as digits as its factorization.

163270949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33786.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 163270949 is about 12777.7521106022. The cubic root of 163270949 is about 546.5580631884.

The spelling of 163270949 in words is "one hundred sixty-three million, two hundred seventy thousand, nine hundred forty-nine".