1256233 has 4 divisors (see below), whose sum is σ = 1370448. Its totient is φ = 1142020.

The previous prime is 1256231. The next prime is 1256243. The reversal of 1256233 is 3326521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3326521 = 11 ⋅302411.

It is not a de Polignac number, because 1256233 - 2¹ = 1256231 is a prime.

It is a Duffinian number.

1256233 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1256231) 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, 57091 + ... + 57112.

It is an arithmetic number, because the mean of its divisors is an integer number (342612).

2^1256233 is an apocalyptic number.

It is an amenable number.

1256233 is a deficient number, since it is larger than the sum of its proper divisors (114215).

1256233 is a wasteful number, since it uses less digits than its factorization.

1256233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114214.

The product of its digits is 1080, while the sum is 22.

The square root of 1256233 is about 1120.8180048518. The cubic root of 1256233 is about 107.9004856075.

The spelling of 1256233 in words is "one million, two hundred fifty-six thousand, two hundred thirty-three".