745474615 has 4 divisors (see below), whose sum is σ = 894569544. Its totient is φ = 596379688.

The previous prime is 745474579. The next prime is 745474619. The reversal of 745474615 is 516474547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 745474615 - 2⁷ = 745474487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745474619) 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, 74547457 + ... + 74547466.

It is an arithmetic number, because the mean of its divisors is an integer number (223642386).

Almost surely, 2^745474615 is an apocalyptic number.

745474615 is a deficient number, since it is larger than the sum of its proper divisors (149094929).

745474615 is a wasteful number, since it uses less digits than its factorization.

745474615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149094928.

The product of its digits is 470400, while the sum is 43.

The square root of 745474615 is about 27303.3810177421. The cubic root of 745474615 is about 906.7292375148.

The spelling of 745474615 in words is "seven hundred forty-five million, four hundred seventy-four thousand, six hundred fifteen".