1255426128 has 200 divisors, whose sum is σ = 4015430496. Its totient is φ = 375494400.

The previous prime is 1255426069. The next prime is 1255426129. The reversal of 1255426128 is 8216245521.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1255426092 and 1255426101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255426129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1182718 + ... + 1183778.

Almost surely, 2^1255426128 is an apocalyptic number.

1255426128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255426128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2007715248).

1255426128 is an abundant number, since it is smaller than the sum of its proper divisors (2760004368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255426128 is a wasteful number, since it uses less digits than its factorization.

1255426128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1160 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 1255426128 is about 35431.9930006767. The cubic root of 1255426128 is about 1078.7737935062.

The spelling of 1255426128 in words is "one billion, two hundred fifty-five million, four hundred twenty-six thousand, one hundred twenty-eight".