161448784 has 40 divisors (see below), whose sum is σ = 358492928. Its totient is φ = 68999040.

The previous prime is 161448773. The next prime is 161448809. The reversal of 161448784 is 487844161.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 161448784.

It is a congruent number.

It is an unprimeable number.

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, 42649 + ... + 46279.

Almost surely, 2^161448784 is an apocalyptic number.

161448784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161448784 is an abundant number, since it is smaller than the sum of its proper divisors (197044144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161448784 is a wasteful number, since it uses less digits than its factorization.

161448784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043 (or 4037 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 161448784 is about 12706.2498007870. The cubic root of 161448784 is about 544.5171876456.

The spelling of 161448784 in words is "one hundred sixty-one million, four hundred forty-eight thousand, seven hundred eighty-four".