745905015 has 24 divisors (see below), whose sum is σ = 1327848288. Its totient is φ = 387063360.

The previous prime is 745904953. The next prime is 745905023. The reversal of 745905015 is 510509547.

745905015 is a `hidden beast` number, since 7 + 4 + 590 + 50 + 15 = 666.

It is not a de Polignac number, because 745905015 - 2²⁴ = 729127799 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 (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222331 + ... + 225660.

It is an arithmetic number, because the mean of its divisors is an integer number (55327012).

Almost surely, 2^745905015 is an apocalyptic number.

745905015 is a deficient number, since it is larger than the sum of its proper divisors (581943273).

745905015 is a wasteful number, since it uses less digits than its factorization.

745905015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448039 (or 448036 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 745905015 is about 27311.2616881754. The cubic root of 745905015 is about 906.9037040785.

The spelling of 745905015 in words is "seven hundred forty-five million, nine hundred five thousand, fifteen".