612344745 has 64 divisors (see below), whose sum is σ = 1108477440. Its totient is φ = 320696064.

The previous prime is 612344699. The next prime is 612344771. The reversal of 612344745 is 547443216.

612344745 is a `hidden beast` number, since 612 + 34 + 4 + 7 + 4 + 5 = 666.

It is not a de Polignac number, because 612344745 - 2⁸ = 612344489 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3539479 + ... + 3539651.

It is an arithmetic number, because the mean of its divisors is an integer number (17319960).

Almost surely, 2^612344745 is an apocalyptic number.

It is an amenable number.

612344745 is a deficient number, since it is larger than the sum of its proper divisors (496132695).

612344745 is a wasteful number, since it uses less digits than its factorization.

612344745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 505 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 612344745 is about 24745.6005180719. The cubic root of 612344745 is about 849.1778648188.

It can be divided in two parts, 612344 and 745, that added together give a square (613089 = 783²).

The spelling of 612344745 in words is "six hundred twelve million, three hundred forty-four thousand, seven hundred forty-five".