745806215 has 96 divisors (see below), whose sum is σ = 1197711360. Its totient is φ = 440294400.

The previous prime is 745806203. The next prime is 745806247. The reversal of 745806215 is 512608547.

It is not a de Polignac number, because 745806215 - 2⁸ = 745805959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6599999 + ... + 6600111.

It is an arithmetic number, because the mean of its divisors is an integer number (12476160).

Almost surely, 2^745806215 is an apocalyptic number.

745806215 is a deficient number, since it is larger than the sum of its proper divisors (451905145).

745806215 is a wasteful number, since it uses less digits than its factorization.

745806215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 745806215 is about 27309.4528506157. The cubic root of 745806215 is about 906.8636605338.

The spelling of 745806215 in words is "seven hundred forty-five million, eight hundred six thousand, two hundred fifteen".