281134473605 has 8 divisors (see below), whose sum is σ = 337368752664. Its totient is φ = 224902656000.

The previous prime is 281134473577. The next prime is 281134473623. The reversal of 281134473605 is 506374431182.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19417307716 + 261717165889 = 139346^2 + 511583^2 .

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

It is not a de Polignac number, because 281134473605 - 2²⁰ = 281133425029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353996 + ... + 829205.

It is an arithmetic number, because the mean of its divisors is an integer number (42171094083).

Almost surely, 2^281134473605 is an apocalyptic number.

It is an amenable number.

281134473605 is a deficient number, since it is larger than the sum of its proper divisors (56234279059).

281134473605 is a wasteful number, since it uses less digits than its factorization.

281134473605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230727.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 281134473605 in words is "two hundred eighty-one billion, one hundred thirty-four million, four hundred seventy-three thousand, six hundred five".