161276984 has 16 divisors (see below), whose sum is σ = 329884920. Its totient is φ = 73307680.

The previous prime is 161276981. The next prime is 161276993. The reversal of 161276984 is 489672161.

161276984 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161276981) 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 3 ways as a sum of consecutive naturals, for example, 916259 + ... + 916434.

Almost surely, 2^161276984 is an apocalyptic number.

It is an amenable number.

161276984 is an abundant number, since it is smaller than the sum of its proper divisors (168607936).

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

161276984 is a wasteful number, since it uses less digits than its factorization.

161276984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832710 (or 1832706 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 161276984 is about 12699.4875487163. The cubic root of 161276984 is about 544.3239762092.

The spelling of 161276984 in words is "one hundred sixty-one million, two hundred seventy-six thousand, nine hundred eighty-four".