1151254543 has 2 divisors, whose sum is σ = 1151254544. Its totient is φ = 1151254542.

The previous prime is 1151254541. The next prime is 1151254547. The reversal of 1151254543 is 3454521511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1151254543 - 2¹ = 1151254541 is a prime.

Together with 1151254541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151254541) 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 as a sum of consecutive naturals, namely, 575627271 + 575627272.

It is an arithmetic number, because the mean of its divisors is an integer number (575627272).

Almost surely, 2^1151254543 is an apocalyptic number.

1151254543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151254543 is an equidigital number, since it uses as much as digits as its factorization.

1151254543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 31.

The square root of 1151254543 is about 33930.1421010876. The cubic root of 1151254543 is about 1048.0703919926.

The spelling of 1151254543 in words is "one billion, one hundred fifty-one million, two hundred fifty-four thousand, five hundred forty-three".