281148855 has 32 divisors (see below), whose sum is σ = 485345280. Its totient is φ = 138153600.

The previous prime is 281148851. The next prime is 281148883. The reversal of 281148855 is 558841182.

It is not a de Polignac number, because 281148855 - 2² = 281148851 is a prime.

It is a super-2 number, since 2×281148855² = 158089357335622050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281148851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143130 + ... + 145080.

It is an arithmetic number, because the mean of its divisors is an integer number (15167040).

Almost surely, 2^281148855 is an apocalyptic number.

281148855 is a deficient number, since it is larger than the sum of its proper divisors (204196425).

281148855 is a wasteful number, since it uses less digits than its factorization.

281148855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its digits is 102400, while the sum is 42.

The square root of 281148855 is about 16767.4939988061. The cubic root of 281148855 is about 655.1067984276.

The spelling of 281148855 in words is "two hundred eighty-one million, one hundred forty-eight thousand, eight hundred fifty-five".