612251 has 4 divisors (see below), whose sum is σ = 620712. Its totient is φ = 603792.

The previous prime is 612229. The next prime is 612259. The reversal of 612251 is 152216.

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 612251 - 2¹⁸ = 350107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612259) 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, 4121 + ... + 4266.

It is an arithmetic number, because the mean of its divisors is an integer number (155178).

2⁶¹²²⁵¹ is an apocalyptic number.

612251 is a deficient number, since it is larger than the sum of its proper divisors (8461).

612251 is an equidigital number, since it uses as much as digits as its factorization.

612251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8460.

The product of its digits is 120, while the sum is 17.

The square root of 612251 is about 782.4646956892. The cubic root of 612251 is about 84.9134528532.

Adding to 612251 its reverse (152216), we get a palindrome (764467).

The spelling of 612251 in words is "six hundred twelve thousand, two hundred fifty-one".