2107232861 has 4 divisors (see below), whose sum is σ = 2141777724. Its totient is φ = 2072688000.

The previous prime is 2107232833. The next prime is 2107232863. The reversal of 2107232861 is 1682327012.

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 491996761 + 1615236100 = 22181^2 + 40190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2107232861 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 (2107232863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17272340 + ... + 17272461.

It is an arithmetic number, because the mean of its divisors is an integer number (535444431).

Almost surely, 2^2107232861 is an apocalyptic number.

It is an amenable number.

2107232861 is a deficient number, since it is larger than the sum of its proper divisors (34544863).

2107232861 is an equidigital number, since it uses as much as digits as its factorization.

2107232861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34544862.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2107232861 is about 45904.6060978634. The cubic root of 2107232861 is about 1282.0476789015.

Adding to 2107232861 its reverse (1682327012), we get a palindrome (3789559873).

The spelling of 2107232861 in words is "two billion, one hundred seven million, two hundred thirty-two thousand, eight hundred sixty-one".