163609077 has 4 divisors (see below), whose sum is σ = 218145440. Its totient is φ = 109072716.

The previous prime is 163609067. The next prime is 163609081. The reversal of 163609077 is 770906361.

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 not a de Polignac number, because 163609077 - 2¹¹ = 163607029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163609067) 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, 27268177 + ... + 27268182.

It is an arithmetic number, because the mean of its divisors is an integer number (54536360).

Almost surely, 2^163609077 is an apocalyptic number.

It is an amenable number.

163609077 is a deficient number, since it is larger than the sum of its proper divisors (54536363).

163609077 is an equidigital number, since it uses as much as digits as its factorization.

163609077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54536362.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 163609077 is about 12790.9763896272. The cubic root of 163609077 is about 546.9351034328.

The spelling of 163609077 in words is "one hundred sixty-three million, six hundred nine thousand, seventy-seven".