1150554243 has 8 divisors (see below), whose sum is σ = 1583558656. Its totient is φ = 742293000.

The previous prime is 1150554227. The next prime is 1150554283. The reversal of 1150554243 is 3424550511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1150554243 - 2⁴ = 1150554227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1150554243.

It is not an unprimeable number, because it can be changed into a prime (1150554283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6185683 + ... + 6185868.

It is an arithmetic number, because the mean of its divisors is an integer number (197944832).

Almost surely, 2^1150554243 is an apocalyptic number.

1150554243 is a deficient number, since it is larger than the sum of its proper divisors (433004413).

1150554243 is a wasteful number, since it uses less digits than its factorization.

1150554243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371585.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1150554243 is about 33919.8207984653. The cubic root of 1150554243 is about 1047.8578376182.

The spelling of 1150554243 in words is "one billion, one hundred fifty million, five hundred fifty-four thousand, two hundred forty-three".