1531233 has 12 divisors (see below), whose sum is σ = 2413008. Its totient is φ = 927960.

The previous prime is 1531217. The next prime is 1531253. The reversal of 1531233 is 3321351.

It is not a de Polignac number, because 1531233 - 2⁴ = 1531217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1531253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7635 + ... + 7832.

It is an arithmetic number, because the mean of its divisors is an integer number (201084).

2^1531233 is an apocalyptic number.

It is an amenable number.

1531233 is a deficient number, since it is larger than the sum of its proper divisors (881775).

1531233 is a wasteful number, since it uses less digits than its factorization.

1531233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15484 (or 15481 counting only the distinct ones).

The product of its digits is 270, while the sum is 18.

The square root of 1531233 is about 1237.4299980201. The cubic root of 1531233 is about 115.2604807561.

Adding to 1531233 its reverse (3321351), we get a palindrome (4852584).

It can be divided in two parts, 1531 and 233, that added together give a square (1764 = 42²).

The spelling of 1531233 in words is "one million, five hundred thirty-one thousand, two hundred thirty-three".