161232049 has 16 divisors (see below), whose sum is σ = 181621440. Its totient is φ = 141856000.

The previous prime is 161232031. The next prime is 161232059. The reversal of 161232049 is 940232161.

It is not a de Polignac number, because 161232049 - 2⁵ = 161232017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161232059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57717 + ... + 60445.

It is an arithmetic number, because the mean of its divisors is an integer number (11351340).

Almost surely, 2^161232049 is an apocalyptic number.

It is an amenable number.

161232049 is a deficient number, since it is larger than the sum of its proper divisors (20389391).

161232049 is a wasteful number, since it uses less digits than its factorization.

161232049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 161232049 is about 12697.7182595929. The cubic root of 161232049 is about 544.2734183238.

The spelling of 161232049 in words is "one hundred sixty-one million, two hundred thirty-two thousand, forty-nine".