281080132 has 6 divisors (see below), whose sum is σ = 491890238. Its totient is φ = 140540064.

The previous prime is 281080117. The next prime is 281080141. The reversal of 281080132 is 231080182.

It can be written as a sum of positive squares in only one way, i.e., 234212416 + 46867716 = 15304^2 + 6846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 281080097 and 281080106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35135013 + ... + 35135020.

Almost surely, 2^281080132 is an apocalyptic number.

It is an amenable number.

281080132 is a deficient number, since it is larger than the sum of its proper divisors (210810106).

281080132 is a wasteful number, since it uses less digits than its factorization.

281080132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70270037 (or 70270035 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 281080132 is about 16765.4445810423. Note that the first 3 decimals coincide. The cubic root of 281080132 is about 655.0534167729.

The spelling of 281080132 in words is "two hundred eighty-one million, eighty thousand, one hundred thirty-two".