2136722467 has 4 divisors (see below), whose sum is σ = 2330969976. Its totient is φ = 1942474960.

The previous prime is 2136722449. The next prime is 2136722477. The reversal of 2136722467 is 7642276312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2136722467 - 2¹¹ = 2136720419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136722477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97123738 + ... + 97123759.

It is an arithmetic number, because the mean of its divisors is an integer number (582742494).

Almost surely, 2^2136722467 is an apocalyptic number.

2136722467 is a deficient number, since it is larger than the sum of its proper divisors (194247509).

2136722467 is a wasteful number, since it uses less digits than its factorization.

2136722467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194247508.

The product of its digits is 169344, while the sum is 40.

The square root of 2136722467 is about 46224.6954235504. The cubic root of 2136722467 is about 1288.0005214158. Note that the first 3 decimals are identical.

Adding to 2136722467 its reverse (7642276312), we get a palindrome (9778998779).

It can be divided in two parts, 21367 and 22467, that added together give a palindrome (43834).

The spelling of 2136722467 in words is "two billion, one hundred thirty-six million, seven hundred twenty-two thousand, four hundred sixty-seven".