161048146 has 16 divisors (see below), whose sum is σ = 276566976. Its totient is φ = 68899536.

The previous prime is 161048141. The next prime is 161048149. The reversal of 161048146 is 641840161.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (161048141) 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 7 ways as a sum of consecutive naturals, for example, 1581 + ... + 18016.

It is an arithmetic number, because the mean of its divisors is an integer number (17285436).

Almost surely, 2^161048146 is an apocalyptic number.

161048146 is a deficient number, since it is larger than the sum of its proper divisors (115518830).

161048146 is a wasteful number, since it uses less digits than its factorization.

161048146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20193.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 161048146 is about 12690.4746168140. The cubic root of 161048146 is about 544.0664049020.

The spelling of 161048146 in words is "one hundred sixty-one million, forty-eight thousand, one hundred forty-six".