745138603 has 8 divisors (see below), whose sum is σ = 813727296. Its totient is φ = 676691400.

The previous prime is 745138579. The next prime is 745138609. The reversal of 745138603 is 306831547.

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

It is not a de Polignac number, because 745138603 - 2⁹ = 745138091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745138609) by changing a digit.

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, 24201 + ... + 45562.

It is an arithmetic number, because the mean of its divisors is an integer number (101715912).

Almost surely, 2^745138603 is an apocalyptic number.

745138603 is a deficient number, since it is larger than the sum of its proper divisors (68588693).

745138603 is a wasteful number, since it uses less digits than its factorization.

745138603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70745.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 745138603 is about 27297.2270203404. The cubic root of 745138603 is about 906.5929853048.

The spelling of 745138603 in words is "seven hundred forty-five million, one hundred thirty-eight thousand, six hundred three".