9645157 has 2 divisors, whose sum is σ = 9645158. Its totient is φ = 9645156.

The previous prime is 9645149. The next prime is 9645169. The reversal of 9645157 is 7515469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8561476 + 1083681 = 2926^2 + 1041^2 .

It is a cyclic number.

It is not a de Polignac number, because 9645157 - 2³ = 9645149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9645107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4822578 + 4822579.

It is an arithmetic number, because the mean of its divisors is an integer number (4822579).

Almost surely, 2^9645157 is an apocalyptic number.

It is an amenable number.

9645157 is a deficient number, since it is larger than the sum of its proper divisors (1).

9645157 is an equidigital number, since it uses as much as digits as its factorization.

9645157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The square root of 9645157 is about 3105.6653071443. The cubic root of 9645157 is about 212.8644320904.

The spelling of 9645157 in words is "nine million, six hundred forty-five thousand, one hundred fifty-seven".