1145302043 has 4 divisors (see below), whose sum is σ = 1195097808. Its totient is φ = 1095506280.

The previous prime is 1145302031. The next prime is 1145302057. The reversal of 1145302043 is 3402035411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145302043 - 2⁴ = 1145302027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 49795741 = 1145302043 / (1 + 1 + 4 + 5 + 3 + 0 + 2 + 0 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145302073) 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, 24897848 + ... + 24897893.

It is an arithmetic number, because the mean of its divisors is an integer number (298774452).

Almost surely, 2^1145302043 is an apocalyptic number.

1145302043 is a deficient number, since it is larger than the sum of its proper divisors (49795765).

1145302043 is an equidigital number, since it uses as much as digits as its factorization.

1145302043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49795764.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1145302043 is about 33842.3114311065. The cubic root of 1145302043 is about 1046.2609392173.

Adding to 1145302043 its reverse (3402035411), we get a palindrome (4547337454).

The spelling of 1145302043 in words is "one billion, one hundred forty-five million, three hundred two thousand, forty-three".