181069272 has 48 divisors (see below), whose sum is σ = 507312000. Its totient is φ = 58274496.

The previous prime is 181069267. The next prime is 181069303. The reversal of 181069272 is 272960181.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41272 + ... + 45447.

It is an arithmetic number, because the mean of its divisors is an integer number (10569000).

Almost surely, 2^181069272 is an apocalyptic number.

181069272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

181069272 is an abundant number, since it is smaller than the sum of its proper divisors (326242728).

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

181069272 is a wasteful number, since it uses less digits than its factorization.

181069272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86760 (or 86753 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 181069272 is about 13456.1982744013. The cubic root of 181069272 is about 565.7374368504.

The spelling of 181069272 in words is "one hundred eighty-one million, sixty-nine thousand, two hundred seventy-two".