619231 has 4 divisors (see below), whose sum is σ = 625464. Its totient is φ = 613000.

The previous prime is 619207. The next prime is 619247. The reversal of 619231 is 132916.

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 619231 - 2⁹ = 618719 is a prime.

It is a super-2 number, since 2×619231² = 766894062722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (156366).

2⁶¹⁹²³¹ is an apocalyptic number.

619231 is a deficient number, since it is larger than the sum of its proper divisors (6233).

619231 is a wasteful number, since it uses less digits than its factorization.

619231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232.

The product of its digits is 324, while the sum is 22.

The square root of 619231 is about 786.9123204017. The cubic root of 619231 is about 85.2349210666.

The spelling of 619231 in words is "six hundred nineteen thousand, two hundred thirty-one".