2003138 has 4 divisors (see below), whose sum is σ = 3004710. Its totient is φ = 1001568.

The previous prime is 2003119. The next prime is 2003149. The reversal of 2003138 is 8313002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1951609 + 51529 = 1397^2 + 227^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500783 + ... + 500786.

2^2003138 is an apocalyptic number.

2003138 is a deficient number, since it is larger than the sum of its proper divisors (1001572).

2003138 is a wasteful number, since it uses less digits than its factorization.

2003138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001571.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2003138 is about 1415.3225780719. The cubic root of 2003138 is about 126.0579644279.

The spelling of 2003138 in words is "two million, three thousand, one hundred thirty-eight".