161279044 has 6 divisors (see below), whose sum is σ = 282238334. Its totient is φ = 80639520.

The previous prime is 161279029. The next prime is 161279089. The reversal of 161279044 is 440972161.

161279044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 137170944 + 24108100 = 11712^2 + 4910^2 .

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 as a sum of consecutive naturals, namely, 20159877 + ... + 20159884.

Almost surely, 2^161279044 is an apocalyptic number.

It is an amenable number.

161279044 is a deficient number, since it is larger than the sum of its proper divisors (120959290).

161279044 is a wasteful number, since it uses less digits than its factorization.

161279044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40319765 (or 40319763 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 161279044 is about 12699.5686540922. The cubic root of 161279044 is about 544.3262937596.

It can be divided in two parts, 1612 and 79044, that added together give a square (80656 = 284²).

The spelling of 161279044 in words is "one hundred sixty-one million, two hundred seventy-nine thousand, forty-four".