1152279473 has 2 divisors, whose sum is σ = 1152279474. Its totient is φ = 1152279472.

The previous prime is 1152279421. The next prime is 1152279503. The reversal of 1152279473 is 3749722511.

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., 1151719969 + 559504 = 33937^2 + 748^2 .

It is an emirp because it is prime and its reverse (3749722511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1152279473 - 2⁶ = 1152279409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1152279473.

It is not a weakly prime, because it can be changed into another prime (1152279773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576139736 + 576139737.

It is an arithmetic number, because the mean of its divisors is an integer number (576139737).

Almost surely, 2^1152279473 is an apocalyptic number.

It is an amenable number.

1152279473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152279473 is an equidigital number, since it uses as much as digits as its factorization.

1152279473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 1152279473 is about 33945.2422734026. The cubic root of 1152279473 is about 1048.3813224103.

The spelling of 1152279473 in words is "one billion, one hundred fifty-two million, two hundred seventy-nine thousand, four hundred seventy-three".