1255481023 has 4 divisors (see below), whose sum is σ = 1255782960. Its totient is φ = 1255179088.

The previous prime is 1255481011. The next prime is 1255481027. The reversal of 1255481023 is 3201845521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3201845521 = 7 ⋅457406503.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255481023 is a prime.

It is a super-2 number, since 2×1255481023² = 3152465198226253058, 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 (1255481027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144643 + ... + 153076.

It is an arithmetic number, because the mean of its divisors is an integer number (313945740).

Almost surely, 2^1255481023 is an apocalyptic number.

1255481023 is a deficient number, since it is larger than the sum of its proper divisors (301937).

1255481023 is an equidigital number, since it uses as much as digits as its factorization.

1255481023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301936.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1255481023 is about 35432.7676452179. The cubic root of 1255481023 is about 1078.7895168326.

The spelling of 1255481023 in words is "one billion, two hundred fifty-five million, four hundred eighty-one thousand, twenty-three".