1159997503 has 8 divisors (see below), whose sum is σ = 1344384000. Its totient is φ = 980279160.

The previous prime is 1159997497. The next prime is 1159997551. The reversal of 1159997503 is 3057999511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1159997503 - 2⁹ = 1159996991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159997563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166503 + ... + 1167496.

It is an arithmetic number, because the mean of its divisors is an integer number (168048000).

Almost surely, 2^1159997503 is an apocalyptic number.

1159997503 is a deficient number, since it is larger than the sum of its proper divisors (184386497).

1159997503 is an equidigital number, since it uses as much as digits as its factorization.

1159997503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334077.

The product of its (nonzero) digits is 382725, while the sum is 49.

The square root of 1159997503 is about 34058.7360746109. The cubic root of 1159997503 is about 1050.7168205780.

The spelling of 1159997503 in words is "one billion, one hundred fifty-nine million, nine hundred ninety-seven thousand, five hundred three".