281055461 has 4 divisors (see below), whose sum is σ = 282468000. Its totient is φ = 279642924.

The previous prime is 281055433. The next prime is 281055473. The reversal of 281055461 is 164550182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164550182 = 2 ⋅82275091.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281055461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281055421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705971 + ... + 706368.

It is an arithmetic number, because the mean of its divisors is an integer number (70617000).

Almost surely, 2^281055461 is an apocalyptic number.

It is an amenable number.

281055461 is a deficient number, since it is larger than the sum of its proper divisors (1412539).

281055461 is a wasteful number, since it uses less digits than its factorization.

281055461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412538.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 281055461 is about 16764.7087955622. The cubic root of 281055461 is about 655.0342510691.

The spelling of 281055461 in words is "two hundred eighty-one million, fifty-five thousand, four hundred sixty-one".