2136062821 has 4 divisors (see below), whose sum is σ = 2248487200. Its totient is φ = 2023638444.

The previous prime is 2136062791. The next prime is 2136062833. The reversal of 2136062821 is 1282606312.

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 2136062821 - 2¹⁹ = 2135538533 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 (2136062861) 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, 56212161 + ... + 56212198.

It is an arithmetic number, because the mean of its divisors is an integer number (562121800).

Almost surely, 2^2136062821 is an apocalyptic number.

It is an amenable number.

2136062821 is a deficient number, since it is larger than the sum of its proper divisors (112424379).

2136062821 is a wasteful number, since it uses less digits than its factorization.

2136062821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112424378.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2136062821 is about 46217.5596608042. The cubic root of 2136062821 is about 1287.8679645284.

The spelling of 2136062821 in words is "two billion, one hundred thirty-six million, sixty-two thousand, eight hundred twenty-one".