1152023291 has 2 divisors, whose sum is σ = 1152023292. Its totient is φ = 1152023290.

The previous prime is 1152023269. The next prime is 1152023357. The reversal of 1152023291 is 1923202511.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1923202511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1152023291 - 2¹⁴ = 1152006907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1152023291.

It is not a weakly prime, because it can be changed into another prime (1152023221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576011645 + 576011646.

It is an arithmetic number, because the mean of its divisors is an integer number (576011646).

Almost surely, 2^1152023291 is an apocalyptic number.

1152023291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152023291 is an equidigital number, since it uses as much as digits as its factorization.

1152023291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1152023291 is about 33941.4686040542. The cubic root of 1152023291 is about 1048.3036224146.

The spelling of 1152023291 in words is "one billion, one hundred fifty-two million, twenty-three thousand, two hundred ninety-one".