1145787503 has 16 divisors (see below), whose sum is σ = 1341559296. Its totient is φ = 958093920.

The previous prime is 1145787499. The next prime is 1145787529. The reversal of 1145787503 is 3057875411.

It is a happy number.

It is not a de Polignac number, because 1145787503 - 2² = 1145787499 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145487503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318173 + ... + 321753.

It is an arithmetic number, because the mean of its divisors is an integer number (83847456).

Almost surely, 2^1145787503 is an apocalyptic number.

1145787503 is a deficient number, since it is larger than the sum of its proper divisors (195771793).

1145787503 is a wasteful number, since it uses less digits than its factorization.

1145787503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 1145787503 is about 33849.4830536598. The cubic root of 1145787503 is about 1046.4087447945.

The spelling of 1145787503 in words is "one billion, one hundred forty-five million, seven hundred eighty-seven thousand, five hundred three".