1255233839 has 8 divisors (see below), whose sum is σ = 1270954080. Its totient is φ = 1239549696.

The previous prime is 1255233827. The next prime is 1255233853. The reversal of 1255233839 is 9383325521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255233839 - 2¹⁶ = 1255168303 is a prime.

It is a super-2 number, since 2×1255233839² = 3151223981141355842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1255233796 and 1255233805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255233439) 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, 64679 + ... + 81815.

It is an arithmetic number, because the mean of its divisors is an integer number (158869260).

Almost surely, 2^1255233839 is an apocalyptic number.

1255233839 is a deficient number, since it is larger than the sum of its proper divisors (15720241).

1255233839 is an equidigital number, since it uses as much as digits as its factorization.

1255233839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18049.

The product of its digits is 194400, while the sum is 41.

The square root of 1255233839 is about 35429.2794027765. The cubic root of 1255233839 is about 1078.7187134233.

The spelling of 1255233839 in words is "one billion, two hundred fifty-five million, two hundred thirty-three thousand, eight hundred thirty-nine".