612475321 has 4 divisors (see below), whose sum is σ = 613148544. Its totient is φ = 611802100.

The previous prime is 612475313. The next prime is 612475327. The reversal of 612475321 is 123574216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612475321 - 2³ = 612475313 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612475327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335245 + ... + 337066.

It is an arithmetic number, because the mean of its divisors is an integer number (153287136).

Almost surely, 2^612475321 is an apocalyptic number.

It is an amenable number.

612475321 is a deficient number, since it is larger than the sum of its proper divisors (673223).

612475321 is an equidigital number, since it uses as much as digits as its factorization.

612475321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673222.

The product of its digits is 10080, while the sum is 31.

The square root of 612475321 is about 24748.2387454138. The cubic root of 612475321 is about 849.2382199097.

The spelling of 612475321 in words is "six hundred twelve million, four hundred seventy-five thousand, three hundred twenty-one".