1154045443 has 4 divisors (see below), whose sum is σ = 1156867480. Its totient is φ = 1151223408.

The previous prime is 1154045437. The next prime is 1154045449. The reversal of 1154045443 is 3445404511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1154045437) and next prime (1154045449).

It is a cyclic number.

It is not a de Polignac number, because 1154045443 - 2⁵ = 1154045411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154045449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1410405 + ... + 1411222.

It is an arithmetic number, because the mean of its divisors is an integer number (289216870).

Almost surely, 2^1154045443 is an apocalyptic number.

1154045443 is a deficient number, since it is larger than the sum of its proper divisors (2822037).

1154045443 is an equidigital number, since it uses as much as digits as its factorization.

1154045443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822036.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1154045443 is about 33971.2443546008. The cubic root of 1154045443 is about 1048.9166280069.

Adding to 1154045443 its reverse (3445404511), we get a palindrome (4599449954).

The spelling of 1154045443 in words is "one billion, one hundred fifty-four million, forty-five thousand, four hundred forty-three".