1375512003 has 8 divisors (see below), whose sum is σ = 2037795600. Its totient is φ = 917007984.

The previous prime is 1375511989. The next prime is 1375512013. The reversal of 1375512003 is 3002155731.

It is not a de Polignac number, because 1375512003 - 2¹⁷ = 1375380931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 50944889 = 1375512003 / (1 + 3 + 7 + 5 + 5 + 1 + 2 + 0 + 0 + 3).

It is not an unprimeable number, because it can be changed into a prime (1375512013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25472418 + ... + 25472471.

It is an arithmetic number, because the mean of its divisors is an integer number (254724450).

Almost surely, 2^1375512003 is an apocalyptic number.

1375512003 is a deficient number, since it is larger than the sum of its proper divisors (662283597).

1375512003 is an equidigital number, since it uses as much as digits as its factorization.

1375512003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50944898 (or 50944892 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 1375512003 is about 37087.8956399524. The cubic root of 1375512003 is about 1112.1280505176.

Adding to 1375512003 its reverse (3002155731), we get a palindrome (4377667734).

The spelling of 1375512003 in words is "one billion, three hundred seventy-five million, five hundred twelve thousand, three".