1603113 has 4 divisors (see below), whose sum is σ = 2137488. Its totient is φ = 1068740.

The previous prime is 1603111. The next prime is 1603139. The reversal of 1603113 is 3113061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1603113 - 2¹ = 1603111 is a prime.

It is a D-number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1603092 and 1603101.

It is not an unprimeable number, because it can be changed into a prime (1603111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267183 + ... + 267188.

It is an arithmetic number, because the mean of its divisors is an integer number (534372).

2^1603113 is an apocalyptic number.

It is an amenable number.

1603113 is a deficient number, since it is larger than the sum of its proper divisors (534375).

1603113 is an equidigital number, since it uses as much as digits as its factorization.

1603113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534374.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1603113 is about 1266.1409874102. The cubic root of 1603113 is about 117.0365142807.

Adding to 1603113 its reverse (3113061), we get a palindrome (4716174).

The spelling of 1603113 in words is "one million, six hundred three thousand, one hundred thirteen".