2134085813 has 4 divisors (see below), whose sum is σ = 2147178528. Its totient is φ = 2120993100.

The previous prime is 2134085801. The next prime is 2134085879. The reversal of 2134085813 is 3185804312.

It is a happy number.

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 not a de Polignac number, because 2134085813 - 2¹⁰ = 2134084789 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 (2134085893) 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, 6546113 + ... + 6546438.

It is an arithmetic number, because the mean of its divisors is an integer number (536794632).

Almost surely, 2^2134085813 is an apocalyptic number.

It is an amenable number.

2134085813 is a deficient number, since it is larger than the sum of its proper divisors (13092715).

2134085813 is a wasteful number, since it uses less digits than its factorization.

2134085813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092714.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2134085813 is about 46196.1666483270. The cubic root of 2134085813 is about 1287.4705181674.

The spelling of 2134085813 in words is "two billion, one hundred thirty-four million, eighty-five thousand, eight hundred thirteen".