1255723133 has 8 divisors (see below), whose sum is σ = 1436016960. Its totient is φ = 1075655520.

The previous prime is 1255723123. The next prime is 1255723141. The reversal of 1255723133 is 3313275521.

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 1255723133 - 2⁸ = 1255722877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255723133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255723123) 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, 44483 + ... + 67008.

It is an arithmetic number, because the mean of its divisors is an integer number (179502120).

Almost surely, 2^1255723133 is an apocalyptic number.

It is an amenable number.

1255723133 is a deficient number, since it is larger than the sum of its proper divisors (180293827).

1255723133 is a wasteful number, since it uses less digits than its factorization.

1255723133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113107.

The product of its digits is 18900, while the sum is 32.

The square root of 1255723133 is about 35436.1839508715. The cubic root of 1255723133 is about 1078.8588578362.

Adding to 1255723133 its reverse (3313275521), we get a palindrome (4568998654).

The spelling of 1255723133 in words is "one billion, two hundred fifty-five million, seven hundred twenty-three thousand, one hundred thirty-three".