745091567 has 4 divisors (see below), whose sum is σ = 812827176. Its totient is φ = 677355960.

The previous prime is 745091563. The next prime is 745091579. The reversal of 745091567 is 765190547.

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 745091567 - 2² = 745091563 is a prime.

It is a super-2 number, since 2×745091567² = 1110322886429030978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745091561) 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 3 ways as a sum of consecutive naturals, for example, 33867788 + ... + 33867809.

It is an arithmetic number, because the mean of its divisors is an integer number (203206794).

Almost surely, 2^745091567 is an apocalyptic number.

745091567 is a deficient number, since it is larger than the sum of its proper divisors (67735609).

745091567 is a wasteful number, since it uses less digits than its factorization.

745091567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67735608.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 745091567 is about 27296.3654540307. The cubic root of 745091567 is about 906.5739090306.

The spelling of 745091567 in words is "seven hundred forty-five million, ninety-one thousand, five hundred sixty-seven".