1208832161 has 4 divisors (see below), whose sum is σ = 1216837824. Its totient is φ = 1200826500.

The previous prime is 1208832103. The next prime is 1208832199. The reversal of 1208832161 is 1612388021.

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 1208832161 - 2¹⁰ = 1208831137 is a prime.

It is a super-2 number, since 2×1208832161² = 2922550386935859842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1208832461) 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, 4002605 + ... + 4002906.

It is an arithmetic number, because the mean of its divisors is an integer number (304209456).

Almost surely, 2^1208832161 is an apocalyptic number.

It is an amenable number.

1208832161 is a deficient number, since it is larger than the sum of its proper divisors (8005663).

1208832161 is an equidigital number, since it uses as much as digits as its factorization.

1208832161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005662.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1208832161 is about 34768.2637041311. The cubic root of 1208832161 is about 1065.2593022132.

The spelling of 1208832161 in words is "one billion, two hundred eight million, eight hundred thirty-two thousand, one hundred sixty-one".