161273088 has 54 divisors (see below), whose sum is σ = 464996714. Its totient is φ = 53756928.

The previous prime is 161273071. The next prime is 161273107. The reversal of 161273088 is 880372161.

161273088 is a `hidden beast` number, since 1 + 612 + 7 + 30 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 154554624 + 6718464 = 12432^2 + 2592^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32695 + ... + 37302.

Almost surely, 2^161273088 is an apocalyptic number.

161273088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

161273088 is an abundant number, since it is smaller than the sum of its proper divisors (303723626).

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

161273088 is an equidigital number, since it uses as much as digits as its factorization.

161273088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70019 (or 70002 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 161273088 is about 12699.3341557737. The cubic root of 161273088 is about 544.3195930599.

The spelling of 161273088 in words is "one hundred sixty-one million, two hundred seventy-three thousand, eighty-eight".