2081412457 has 4 divisors (see below), whose sum is σ = 2083456080. Its totient is φ = 2079368836.

The previous prime is 2081412451. The next prime is 2081412461. The reversal of 2081412457 is 7542141802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081412457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081412451) 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, 1020283 + ... + 1022320.

It is an arithmetic number, because the mean of its divisors is an integer number (520864020).

Almost surely, 2^2081412457 is an apocalyptic number.

It is an amenable number.

2081412457 is a deficient number, since it is larger than the sum of its proper divisors (2043623).

2081412457 is a wasteful number, since it uses less digits than its factorization.

2081412457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043622.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 2081412457 is about 45622.4994602444. The cubic root of 2081412457 is about 1276.7897371133.

The spelling of 2081412457 in words is "two billion, eighty-one million, four hundred twelve thousand, four hundred fifty-seven".