1145562503 has 4 divisors (see below), whose sum is σ = 1156904808. Its totient is φ = 1134220200.

The previous prime is 1145562487. The next prime is 1145562581. The reversal of 1145562503 is 3052655411.

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 1145562503 - 2⁴ = 1145562487 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 1145562503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145564503) 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, 5671001 + ... + 5671202.

It is an arithmetic number, because the mean of its divisors is an integer number (289226202).

Almost surely, 2^1145562503 is an apocalyptic number.

1145562503 is a deficient number, since it is larger than the sum of its proper divisors (11342305).

1145562503 is a wasteful number, since it uses less digits than its factorization.

1145562503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11342304.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1145562503 is about 33846.1593537583. The cubic root of 1145562503 is about 1046.3402453622.

The spelling of 1145562503 in words is "one billion, one hundred forty-five million, five hundred sixty-two thousand, five hundred three".