1165141503 has 24 divisors (see below), whose sum is σ = 1837180800. Its totient is φ = 735875928.

The previous prime is 1165141501. The next prime is 1165141517. The reversal of 1165141503 is 3051415611.

1165141503 is a `hidden beast` number, since 1 + 1 + 651 + 4 + 1 + 5 + 0 + 3 = 666.

It is not a de Polignac number, because 1165141503 - 2¹ = 1165141501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165141501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121563 + ... + 130796.

It is an arithmetic number, because the mean of its divisors is an integer number (76549200).

Almost surely, 2^1165141503 is an apocalyptic number.

1165141503 is a deficient number, since it is larger than the sum of its proper divisors (672039297).

1165141503 is an equidigital number, since it uses as much as digits as its factorization.

1165141503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252393 (or 252381 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 1165141503 is about 34134.1691417852. The cubic root of 1165141503 is about 1052.2676623184.

The spelling of 1165141503 in words is "one billion, one hundred sixty-five million, one hundred forty-one thousand, five hundred three".