755281 has 8 divisors (see below), whose sum is σ = 786600. Its totient is φ = 724608.

The previous prime is 755273. The next prime is 755309. The reversal of 755281 is 182557.

It can be written as a sum of positive squares in 4 ways, for example, as 140625 + 614656 = 375^2 + 784^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 755281 - 2³ = 755273 is a prime.

It is a super-2 number, since 2×755281² = 1140898777922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (755081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4995 + ... + 5143.

It is an arithmetic number, because the mean of its divisors is an integer number (98325).

2⁷⁵⁵²⁸¹ is an apocalyptic number.

It is an amenable number.

755281 is a deficient number, since it is larger than the sum of its proper divisors (31319).

755281 is a wasteful number, since it uses less digits than its factorization.

755281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323.

The product of its digits is 2800, while the sum is 28.

The square root of 755281 is about 869.0690421365. The cubic root of 755281 is about 91.0687802675.

It can be divided in two parts, 75 and 5281, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 755281 in words is "seven hundred fifty-five thousand, two hundred eighty-one".