1255541 has 8 divisors (see below), whose sum is σ = 1452864. Its totient is φ = 1062720.

The previous prime is 1255519. The next prime is 1255549. The reversal of 1255541 is 1455521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1255541 - 2⁶ = 1255477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255549) 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, 500 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (181608).

2^1255541 is an apocalyptic number.

It is an amenable number.

1255541 is a deficient number, since it is larger than the sum of its proper divisors (197323).

1255541 is an equidigital number, since it uses as much as digits as its factorization.

1255541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251.

The product of its digits is 1000, while the sum is 23.

The square root of 1255541 is about 1120.5092592210. The cubic root of 1255541 is about 107.8806695249.

The spelling of 1255541 in words is "one million, two hundred fifty-five thousand, five hundred forty-one".