1325603903 has 8 divisors (see below), whose sum is σ = 1430013648. Its totient is φ = 1221542784.

The previous prime is 1325603899. The next prime is 1325603959. The reversal of 1325603903 is 3093065231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1325603903 - 2² = 1325603899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325603903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325603303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79226 + ... + 94487.

It is an arithmetic number, because the mean of its divisors is an integer number (178751706).

Almost surely, 2^1325603903 is an apocalyptic number.

1325603903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1325603903 is a deficient number, since it is larger than the sum of its proper divisors (104409745).

1325603903 is a wasteful number, since it uses less digits than its factorization.

1325603903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174313.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 1325603903 is about 36408.8437470898. The cubic root of 1325603903 is about 1098.5114584859.

The spelling of 1325603903 in words is "one billion, three hundred twenty-five million, six hundred three thousand, nine hundred three".