745919215 has 8 divisors (see below), whose sum is σ = 903025008. Its totient is φ = 591454080.

The previous prime is 745919189. The next prime is 745919219. The reversal of 745919215 is 512919547.

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

It is not a de Polignac number, because 745919215 - 2⁷ = 745919087 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 (745919219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659541 + ... + 660670.

It is an arithmetic number, because the mean of its divisors is an integer number (112878126).

Almost surely, 2^745919215 is an apocalyptic number.

745919215 is a deficient number, since it is larger than the sum of its proper divisors (157105793).

745919215 is a wasteful number, since it uses less digits than its factorization.

745919215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320329.

The product of its digits is 113400, while the sum is 43.

The square root of 745919215 is about 27311.5216529581. The cubic root of 745919215 is about 906.9094590341.

The spelling of 745919215 in words is "seven hundred forty-five million, nine hundred nineteen thousand, two hundred fifteen".