745005615 has 8 divisors (see below), whose sum is σ = 1192009008. Its totient is φ = 397336320.

The previous prime is 745005587. The next prime is 745005641. The reversal of 745005615 is 516500547.

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

It is not a de Polignac number, because 745005615 - 2¹⁰ = 745004591 is a prime.

It is a congruent 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, 24833506 + ... + 24833535.

It is an arithmetic number, because the mean of its divisors is an integer number (149001126).

Almost surely, 2^745005615 is an apocalyptic number.

745005615 is a deficient number, since it is larger than the sum of its proper divisors (447003393).

745005615 is a wasteful number, since it uses less digits than its factorization.

745005615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49667049.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 745005615 is about 27294.7909865601. The cubic root of 745005615 is about 906.5390476164.

The spelling of 745005615 in words is "seven hundred forty-five million, five thousand, six hundred fifteen".