612303345 has 12 divisors (see below), whose sum is σ = 1061325876. Its totient is φ = 326561760.

The previous prime is 612303337. The next prime is 612303347. The reversal of 612303345 is 543303216.

It is a happy number.

612303345 is a `hidden beast` number, since 6 + 12 + 303 + 345 = 666.

612303345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 416527281 + 195776064 = 20409^2 + 13992^2 .

It is not a de Polignac number, because 612303345 - 2³ = 612303337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612303347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6803326 + ... + 6803415.

It is an arithmetic number, because the mean of its divisors is an integer number (88443823).

Almost surely, 2^612303345 is an apocalyptic number.

It is an amenable number.

612303345 is a deficient number, since it is larger than the sum of its proper divisors (449022531).

612303345 is a wasteful number, since it uses less digits than its factorization.

612303345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13606752 (or 13606749 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 612303345 is about 24744.7639916003. The cubic root of 612303345 is about 849.1587270394.

The spelling of 612303345 in words is "six hundred twelve million, three hundred three thousand, three hundred forty-five".