2081235251 has 8 divisors (see below), whose sum is σ = 2274747264. Its totient is φ = 1895621760.

The previous prime is 2081235241. The next prime is 2081235259. The reversal of 2081235251 is 1525321802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081235251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2081235259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1974080 + ... + 1975133.

It is an arithmetic number, because the mean of its divisors is an integer number (284343408).

Almost surely, 2^2081235251 is an apocalyptic number.

2081235251 is a deficient number, since it is larger than the sum of its proper divisors (193512013).

2081235251 is a wasteful number, since it uses less digits than its factorization.

2081235251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949261.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2081235251 is about 45620.5573289060. The cubic root of 2081235251 is about 1276.7535019079.

The spelling of 2081235251 in words is "two billion, eighty-one million, two hundred thirty-five thousand, two hundred fifty-one".