1255123412 has 12 divisors (see below), whose sum is σ = 2267319936. Its totient is φ = 607317720.

The previous prime is 1255123399. The next prime is 1255123423. The reversal of 1255123412 is 2143215521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5060858 + ... + 5061105.

It is an arithmetic number, because the mean of its divisors is an integer number (188943328).

Almost surely, 2^1255123412 is an apocalyptic number.

It is an amenable number.

1255123412 is a deficient number, since it is larger than the sum of its proper divisors (1012196524).

1255123412 is a wasteful number, since it uses less digits than its factorization.

1255123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121998 (or 10121996 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1255123412 is about 35427.7209540778. The cubic root of 1255123412 is about 1078.6870796987.

Adding to 1255123412 its reverse (2143215521), we get a palindrome (3398338933).

The spelling of 1255123412 in words is "one billion, two hundred fifty-five million, one hundred twenty-three thousand, four hundred twelve".