281342461 has 8 divisors (see below), whose sum is σ = 283473144. Its totient is φ = 279217920.

The previous prime is 281342441. The next prime is 281342471. The reversal of 281342461 is 164243182.

It can be written as a sum of positive squares in 4 ways, for example, as 109561 + 281232900 = 331^2 + 16770^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 281342461 - 2⁵ = 281342429 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 (281342441) 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, 130585 + ... + 132721.

It is an arithmetic number, because the mean of its divisors is an integer number (35434143).

Almost surely, 2^281342461 is an apocalyptic number.

It is an amenable number.

281342461 is a deficient number, since it is larger than the sum of its proper divisors (2130683).

281342461 is a wasteful number, since it uses less digits than its factorization.

281342461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071.

The product of its digits is 9216, while the sum is 31.

The square root of 281342461 is about 16773.2662591399. The cubic root of 281342461 is about 655.2571381288.

The spelling of 281342461 in words is "two hundred eighty-one million, three hundred forty-two thousand, four hundred sixty-one".