612851 has 4 divisors (see below), whose sum is σ = 617400. Its totient is φ = 608304.

The previous prime is 612847. The next prime is 612853. The reversal of 612851 is 158216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 612851 - 2² = 612847 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (612853) 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, 2066 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (154350).

2⁶¹²⁸⁵¹ is an apocalyptic number.

612851 is a deficient number, since it is larger than the sum of its proper divisors (4549).

612851 is a wasteful number, since it uses less digits than its factorization.

612851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4548.

The product of its digits is 480, while the sum is 23.

The square root of 612851 is about 782.8480056818. The cubic root of 612851 is about 84.9411819153.

The spelling of 612851 in words is "six hundred twelve thousand, eight hundred fifty-one".