1255724 has 6 divisors (see below), whose sum is σ = 2197524. Its totient is φ = 627860.

The previous prime is 1255721. The next prime is 1255747. The reversal of 1255724 is 4275521.

It is a junction number, because it is equal to n+sod(n) for n = 1255693 and 1255702.

It is not an unprimeable number, because it can be changed into a prime (1255721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156962 + ... + 156969.

It is an arithmetic number, because the mean of its divisors is an integer number (366254).

2^1255724 is an apocalyptic number.

It is an amenable number.

1255724 is a deficient number, since it is larger than the sum of its proper divisors (941800).

1255724 is a wasteful number, since it uses less digits than its factorization.

1255724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313935 (or 313933 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 1255724 is about 1120.5909155441. The cubic root of 1255724 is about 107.8859106131.

The spelling of 1255724 in words is "one million, two hundred fifty-five thousand, seven hundred twenty-four".