2235124681 has 4 divisors (see below), whose sum is σ = 2235256452. Its totient is φ = 2234992912.

The previous prime is 2235124673. The next prime is 2235124687. The reversal of 2235124681 is 1864215322.

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 1204714681 + 1030410000 = 34709^2 + 32100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2235124681 - 2³ = 2235124673 is a prime.

It is a super-2 number, since 2×2235124681² = 9991564679230703522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2235124687) 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, 35890 + ... + 75883.

It is an arithmetic number, because the mean of its divisors is an integer number (558814113).

Almost surely, 2^2235124681 is an apocalyptic number.

It is an amenable number.

2235124681 is a deficient number, since it is larger than the sum of its proper divisors (131771).

2235124681 is a wasteful number, since it uses less digits than its factorization.

2235124681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131770.

The product of its digits is 23040, while the sum is 34.

The square root of 2235124681 is about 47277.1052519081. The cubic root of 2235124681 is about 1307.4765791022.

The spelling of 2235124681 in words is "two billion, two hundred thirty-five million, one hundred twenty-four thousand, six hundred eighty-one".