618369231 has 8 divisors (see below), whose sum is σ = 867886720. Its totient is φ = 390548952.

The previous prime is 618369229. The next prime is 618369253. The reversal of 618369231 is 132963816.

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

It is not a de Polignac number, because 618369231 - 2¹ = 618369229 is a prime.

It is a super-2 number, since 2×618369231² = 764761011695062722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 618369231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618369131) 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, 5424235 + ... + 5424348.

It is an arithmetic number, because the mean of its divisors is an integer number (108485840).

Almost surely, 2^618369231 is an apocalyptic number.

618369231 is a deficient number, since it is larger than the sum of its proper divisors (249517489).

618369231 is a wasteful number, since it uses less digits than its factorization.

618369231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10848605.

The product of its digits is 46656, while the sum is 39.

The square root of 618369231 is about 24867.0310049270. The cubic root of 618369231 is about 851.9536290860.

The spelling of 618369231 in words is "six hundred eighteen million, three hundred sixty-nine thousand, two hundred thirty-one".