1255641 has 8 divisors (see below), whose sum is σ = 1681344. Its totient is φ = 833520.

The previous prime is 1255633. The next prime is 1255651. The reversal of 1255641 is 1465521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255641 - 2³ = 1255633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (210168).

2^1255641 is an apocalyptic number.

It is an amenable number.

1255641 is a deficient number, since it is larger than the sum of its proper divisors (425703).

1255641 is a wasteful number, since it uses less digits than its factorization.

1255641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791.

The product of its digits is 1200, while the sum is 24.

The square root of 1255641 is about 1120.5538809000. The cubic root of 1255641 is about 107.8835335707.

The spelling of 1255641 in words is "one million, two hundred fifty-five thousand, six hundred forty-one".