1153245617 has 2 divisors, whose sum is σ = 1153245618. Its totient is φ = 1153245616.

The previous prime is 1153245593. The next prime is 1153245619. The reversal of 1153245617 is 7165423511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829209616 + 324036001 = 28796^2 + 18001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153245617 - 2¹⁸ = 1152983473 is a prime.

Together with 1153245619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1153245619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576622808 + 576622809.

It is an arithmetic number, because the mean of its divisors is an integer number (576622809).

Almost surely, 2^1153245617 is an apocalyptic number.

It is an amenable number.

1153245617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153245617 is an equidigital number, since it uses as much as digits as its factorization.

1153245617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 1153245617 is about 33959.4702108263. The cubic root of 1153245617 is about 1048.6742502952.

The spelling of 1153245617 in words is "one billion, one hundred fifty-three million, two hundred forty-five thousand, six hundred seventeen".