1317157003 has 4 divisors (see below), whose sum is σ = 1362576240. Its totient is φ = 1271737768.

The previous prime is 1317156979. The next prime is 1317157027. The reversal of 1317157003 is 3007517131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3007517131 = 1699 ⋅1770169.

It is an interprime number because it is at equal distance from previous prime (1317156979) and next prime (1317157027).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317157003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317157063) 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 3 ways as a sum of consecutive naturals, for example, 22709575 + ... + 22709632.

It is an arithmetic number, because the mean of its divisors is an integer number (340644060).

Almost surely, 2^1317157003 is an apocalyptic number.

1317157003 is a deficient number, since it is larger than the sum of its proper divisors (45419237).

1317157003 is an equidigital number, since it uses as much as digits as its factorization.

1317157003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45419236.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 1317157003 is about 36292.6577009731. The cubic root of 1317157003 is about 1096.1732045847.

The spelling of 1317157003 in words is "one billion, three hundred seventeen million, one hundred fifty-seven thousand, three".