1603312345 has 8 divisors (see below), whose sum is σ = 1952691264. Its totient is φ = 1263505584.

The previous prime is 1603312327. The next prime is 1603312351. The reversal of 1603312345 is 5432133061.

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 1603312345 - 2¹⁷ = 1603181273 is a prime.

It is a super-2 number, since 2×1603312345² = 5141220951258798050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 2392669 + ... + 2393338.

It is an arithmetic number, because the mean of its divisors is an integer number (244086408).

Almost surely, 2^1603312345 is an apocalyptic number.

It is an amenable number.

1603312345 is a deficient number, since it is larger than the sum of its proper divisors (349378919).

1603312345 is an equidigital number, since it uses as much as digits as its factorization.

1603312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786079.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1603312345 is about 40041.3829056890. The cubic root of 1603312345 is about 1170.4136519201.

The spelling of 1603312345 in words is "one billion, six hundred three million, three hundred twelve thousand, three hundred forty-five".