1255400124 has 24 divisors (see below), whose sum is σ = 3195564288. Its totient is φ = 380424240.

The previous prime is 1255400101. The next prime is 1255400137. The reversal of 1255400124 is 4210045521.

It is a junction number, because it is equal to n+sod(n) for n = 1255400094 and 1255400103.

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 7 ways as a sum of consecutive naturals, for example, 4755172 + ... + 4755435.

It is an arithmetic number, because the mean of its divisors is an integer number (133148512).

Almost surely, 2^1255400124 is an apocalyptic number.

It is an amenable number.

1255400124 is an abundant number, since it is smaller than the sum of its proper divisors (1940164164).

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

1255400124 is a wasteful number, since it uses less digits than its factorization.

1255400124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9510625 (or 9510623 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1255400124 is about 35431.6260422804. The cubic root of 1255400124 is about 1078.7663451382.

Adding to 1255400124 its reverse (4210045521), we get a palindrome (5465445645).

The spelling of 1255400124 in words is "one billion, two hundred fifty-five million, four hundred thousand, one hundred twenty-four".