1151542443 has 16 divisors (see below), whose sum is σ = 1617370880. Its totient is φ = 726763104.

The previous prime is 1151542429. The next prime is 1151542489. The reversal of 1151542443 is 3442451511.

It is not a de Polignac number, because 1151542443 - 2⁸ = 1151542187 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 1151542443.

It is not an unprimeable number, because it can be changed into a prime (1151542493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81405 + ... + 94497.

It is an arithmetic number, because the mean of its divisors is an integer number (101085680).

Almost surely, 2^1151542443 is an apocalyptic number.

1151542443 is a deficient number, since it is larger than the sum of its proper divisors (465828437).

1151542443 is a wasteful number, since it uses less digits than its factorization.

1151542443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14658.

The product of its digits is 9600, while the sum is 30.

The square root of 1151542443 is about 33934.3843763225. The cubic root of 1151542443 is about 1048.1577501182.

Adding to 1151542443 its reverse (3442451511), we get a palindrome (4593993954).

The spelling of 1151542443 in words is "one billion, one hundred fifty-one million, five hundred forty-two thousand, four hundred forty-three".