1153345279 has 2 divisors, whose sum is σ = 1153345280. Its totient is φ = 1153345278.

The previous prime is 1153345273. The next prime is 1153345289. The reversal of 1153345279 is 9725433511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153345279 - 2¹¹ = 1153343231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153345273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576672639 + 576672640.

It is an arithmetic number, because the mean of its divisors is an integer number (576672640).

Almost surely, 2^1153345279 is an apocalyptic number.

1153345279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153345279 is an equidigital number, since it uses as much as digits as its factorization.

1153345279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 1153345279 is about 33960.9375459512. The cubic root of 1153345279 is about 1048.7044577842.

The spelling of 1153345279 in words is "one billion, one hundred fifty-three million, three hundred forty-five thousand, two hundred seventy-nine".