1152255917 has 2 divisors, whose sum is σ = 1152255918. Its totient is φ = 1152255916.

The previous prime is 1152255877. The next prime is 1152255959. The reversal of 1152255917 is 7195522511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609645481 + 542610436 = 24691^2 + 23294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152255917 - 2⁸ = 1152255661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1152255217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576127958 + 576127959.

It is an arithmetic number, because the mean of its divisors is an integer number (576127959).

Almost surely, 2^1152255917 is an apocalyptic number.

It is an amenable number.

1152255917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152255917 is an equidigital number, since it uses as much as digits as its factorization.

1152255917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 38.

The square root of 1152255917 is about 33944.8953010611. The cubic root of 1152255917 is about 1048.3741783568.

The spelling of 1152255917 in words is "one billion, one hundred fifty-two million, two hundred fifty-five thousand, nine hundred seventeen".