612465305 has 8 divisors (see below), whose sum is σ = 736235592. Its totient is φ = 489120768.

The previous prime is 612465299. The next prime is 612465349. The reversal of 612465305 is 503564216.

It can be written as a sum of positive squares in 4 ways, for example, as 284529424 + 327935881 = 16868^2 + 18109^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 612465305 - 2¹⁶ = 612399769 is a prime.

It is a super-2 number, since 2×612465305² = 750227499657486050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103262 + ... + 109031.

It is an arithmetic number, because the mean of its divisors is an integer number (92029449).

Almost surely, 2^612465305 is an apocalyptic number.

It is an amenable number.

612465305 is a deficient number, since it is larger than the sum of its proper divisors (123770287).

612465305 is a wasteful number, since it uses less digits than its factorization.

612465305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212875.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 612465305 is about 24748.0363867520. The cubic root of 612465305 is about 849.2335905987.

The spelling of 612465305 in words is "six hundred twelve million, four hundred sixty-five thousand, three hundred five".