2124860281 has 4 divisors (see below), whose sum is σ = 2124992932. Its totient is φ = 2124727632.

The previous prime is 2124860261. The next prime is 2124860291. The reversal of 2124860281 is 1820684212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34999056 + 2089861225 = 5916^2 + 45715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124860281 - 2¹³ = 2124852089 is a prime.

It is a super-2 number, since 2×2124860281² = 9030062427542797922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2124860201) 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, 38370 + ... + 75643.

It is an arithmetic number, because the mean of its divisors is an integer number (531248233).

Almost surely, 2^2124860281 is an apocalyptic number.

It is an amenable number.

2124860281 is a deficient number, since it is larger than the sum of its proper divisors (132651).

2124860281 is a wasteful number, since it uses less digits than its factorization.

2124860281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132650.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 2124860281 is about 46096.2067962213. The cubic root of 2124860281 is about 1285.6126177004.

The spelling of 2124860281 in words is "two billion, one hundred twenty-four million, eight hundred sixty thousand, two hundred eighty-one".