3636120251 has 2 divisors, whose sum is σ = 3636120252. Its totient is φ = 3636120250.

The previous prime is 3636120247. The next prime is 3636120283. The reversal of 3636120251 is 1520216363.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3636120251 - 2² = 3636120247 is a prime.

It is not a weakly prime, because it can be changed into another prime (3636120451) 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, 1818060125 + 1818060126.

It is an arithmetic number, because the mean of its divisors is an integer number (1818060126).

Almost surely, 2^3636120251 is an apocalyptic number.

3636120251 is a deficient number, since it is larger than the sum of its proper divisors (1).

3636120251 is an equidigital number, since it uses as much as digits as its factorization.

3636120251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3636120251 is about 60300.2508369576. The cubic root of 3636120251 is about 1537.7276109236.

The spelling of 3636120251 in words is "three billion, six hundred thirty-six million, one hundred twenty thousand, two hundred fifty-one".