1003814138 has 4 divisors (see below), whose sum is σ = 1505721210. Its totient is φ = 501907068.

The previous prime is 1003814129. The next prime is 1003814153. The reversal of 1003814138 is 8314183001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8314183001 = 19 ⋅437588579.

It can be written as a sum of positive squares in only one way, i.e., 1003178929 + 635209 = 31673^2 + 797^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1003814138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250953533 + ... + 250953536.

Almost surely, 2^1003814138 is an apocalyptic number.

1003814138 is a deficient number, since it is larger than the sum of its proper divisors (501907072).

1003814138 is an equidigital number, since it uses as much as digits as its factorization.

1003814138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501907071.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1003814138 is about 31683.0260234088. The cubic root of 1003814138 is about 1001.2697663443.

Adding to 1003814138 its reverse (8314183001), we get a palindrome (9317997139).

The spelling of 1003814138 in words is "one billion, three million, eight hundred fourteen thousand, one hundred thirty-eight".