2681630134 has 4 divisors (see below), whose sum is σ = 4022445204. Its totient is φ = 1340815066.

The previous prime is 2681630057. The next prime is 2681630137. The reversal of 2681630134 is 4310361862.

It is a happy number.

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

It is a super-2 number, since 2×2681630134² = 14382280351153715912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2681630134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681630137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670407532 + ... + 670407535.

It is an arithmetic number, because the mean of its divisors is an integer number (1005611301).

Almost surely, 2^2681630134 is an apocalyptic number.

2681630134 is a deficient number, since it is larger than the sum of its proper divisors (1340815070).

2681630134 is a wasteful number, since it uses less digits than its factorization.

2681630134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340815069.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2681630134 is about 51784.4584214222. The cubic root of 2681630134 is about 1389.3114844854.

Adding to 2681630134 its reverse (4310361862), we get a palindrome (6991991996).

The spelling of 2681630134 in words is "two billion, six hundred eighty-one million, six hundred thirty thousand, one hundred thirty-four".