1145530003 has 4 divisors (see below), whose sum is σ = 1146303928. Its totient is φ = 1144756080.

The previous prime is 1145529977. The next prime is 1145530031. The reversal of 1145530003 is 3000355411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3000355411 = 3917 ⋅765983.

It is a cyclic number.

It is not a de Polignac number, because 1145530003 - 2⁵ = 1145529971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145530033) 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, 384738 + ... + 387703.

It is an arithmetic number, because the mean of its divisors is an integer number (286575982).

Almost surely, 2^1145530003 is an apocalyptic number.

1145530003 is a deficient number, since it is larger than the sum of its proper divisors (773925).

1145530003 is an equidigital number, since it uses as much as digits as its factorization.

1145530003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773924.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1145530003 is about 33845.6792367948. The cubic root of 1145530003 is about 1046.3303502584.

Adding to 1145530003 its reverse (3000355411), we get a palindrome (4145885414).

The spelling of 1145530003 in words is "one billion, one hundred forty-five million, five hundred thirty thousand, three".