4521136637 has 2 divisors, whose sum is σ = 4521136638. Its totient is φ = 4521136636.

The previous prime is 4521136579. The next prime is 4521136639. The reversal of 4521136637 is 7366311254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4517318521 + 3818116 = 67211^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521136637 - 2²⁴ = 4504359421 is a prime.

Together with 4521136639, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4521136637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4521136639) 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 as a sum of consecutive naturals, namely, 2260568318 + 2260568319.

It is an arithmetic number, because the mean of its divisors is an integer number (2260568319).

Almost surely, 2^4521136637 is an apocalyptic number.

It is an amenable number.

4521136637 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521136637 is an equidigital number, since it uses as much as digits as its factorization.

4521136637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 4521136637 is about 67239.3979523910. The cubic root of 4521136637 is about 1653.5444633644.

The spelling of 4521136637 in words is "four billion, five hundred twenty-one million, one hundred thirty-six thousand, six hundred thirty-seven".