612288231 has 8 divisors (see below), whose sum is σ = 816837504. Its totient is φ = 407965560.

The previous prime is 612288199. The next prime is 612288241. The reversal of 612288231 is 132882216.

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

It is not a de Polignac number, because 612288231 - 2⁵ = 612288199 is a prime.

It is a super-2 number, since 2×612288231² = 749793755642218722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612288192 and 612288201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612288241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50241 + ... + 61226.

It is an arithmetic number, because the mean of its divisors is an integer number (102104688).

Almost surely, 2^612288231 is an apocalyptic number.

612288231 is a deficient number, since it is larger than the sum of its proper divisors (204549273).

612288231 is a wasteful number, since it uses less digits than its factorization.

612288231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113301.

The product of its digits is 9216, while the sum is 33.

The square root of 612288231 is about 24744.4585917736. The cubic root of 612288231 is about 849.1517401482.

The spelling of 612288231 in words is "six hundred twelve million, two hundred eighty-eight thousand, two hundred thirty-one".