161084450 has 24 divisors (see below), whose sum is σ = 306589008. Its totient is φ = 62934480.

The previous prime is 161084447. The next prime is 161084453. The reversal of 161084450 is 54480161.

It is an interprime number because it is at equal distance from previous prime (161084447) and next prime (161084453).

It is not an unprimeable number, because it can be changed into a prime (161084453) 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 11 ways as a sum of consecutive naturals, for example, 35312 + ... + 39611.

It is an arithmetic number, because the mean of its divisors is an integer number (12774542).

Almost surely, 2^161084450 is an apocalyptic number.

161084450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161084450 is a deficient number, since it is larger than the sum of its proper divisors (145504558).

161084450 is a wasteful number, since it uses less digits than its factorization.

161084450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74978 (or 74973 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 161084450 is about 12691.9049003686. The cubic root of 161084450 is about 544.1072835735.

The spelling of 161084450 in words is "one hundred sixty-one million, eighty-four thousand, four hundred fifty".