2136722507 has 16 divisors (see below), whose sum is σ = 2229161472. Its totient is φ = 2046451680.

The previous prime is 2136722477. The next prime is 2136722513. The reversal of 2136722507 is 7052276312.

It is a cyclic number.

It is not a de Polignac number, because 2136722507 - 2¹² = 2136718411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136722587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1222208 + ... + 1223954.

It is an arithmetic number, because the mean of its divisors is an integer number (139322592).

Almost surely, 2^2136722507 is an apocalyptic number.

2136722507 is a deficient number, since it is larger than the sum of its proper divisors (92438965).

2136722507 is a wasteful number, since it uses less digits than its factorization.

2136722507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 2136722507 is about 46224.6958562195. The cubic root of 2136722507 is about 1288.0005294531. Note that the first 3 decimals are identical.

Adding to 2136722507 its reverse (7052276312), we get a palindrome (9188998819).

The spelling of 2136722507 in words is "two billion, one hundred thirty-six million, seven hundred twenty-two thousand, five hundred seven".