281673053 has 2 divisors, whose sum is σ = 281673054. Its totient is φ = 281673052.

The previous prime is 281673047. The next prime is 281673089. The reversal of 281673053 is 350376182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279491524 + 2181529 = 16718^2 + 1477^2 .

It is a cyclic number.

It is not a de Polignac number, because 281673053 - 2²² = 277478749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281673023) 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 as a sum of consecutive naturals, namely, 140836526 + 140836527.

It is an arithmetic number, because the mean of its divisors is an integer number (140836527).

Almost surely, 2^281673053 is an apocalyptic number.

It is an amenable number.

281673053 is a deficient number, since it is larger than the sum of its proper divisors (1).

281673053 is an equidigital number, since it uses as much as digits as its factorization.

281673053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 281673053 is about 16783.1180952766. The cubic root of 281673053 is about 655.5136913875.

The spelling of 281673053 in words is "two hundred eighty-one million, six hundred seventy-three thousand, fifty-three".