1238231 has 4 divisors (see below), whose sum is σ = 1240464. Its totient is φ = 1236000.

The previous prime is 1238219. The next prime is 1238267. The reversal of 1238231 is 1328321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1328321 = 1021 ⋅1301.

It is a cyclic number.

It is not a de Polignac number, because 1238231 - 2¹⁰ = 1237207 is a prime.

It is a super-2 number, since 2×1238231² = 3066432018722, 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 (1238201) 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, 431 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (310116).

2^1238231 is an apocalyptic number.

1238231 is a deficient number, since it is larger than the sum of its proper divisors (2233).

1238231 is a wasteful number, since it uses less digits than its factorization.

1238231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232.

The product of its digits is 288, while the sum is 20.

The square root of 1238231 is about 1112.7582846243. The cubic root of 1238231 is about 107.3825940141.

The spelling of 1238231 in words is "one million, two hundred thirty-eight thousand, two hundred thirty-one".