1241555 has 16 divisors (see below), whose sum is σ = 1793280. Its totient is φ = 806112.

The previous prime is 1241551. The next prime is 1241557. The reversal of 1241555 is 5551421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1241555 - 2² = 1241551 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1241555.

It is not an unprimeable number, because it can be changed into a prime (1241551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (112080).

2^1241555 is an apocalyptic number.

1241555 is a deficient number, since it is larger than the sum of its proper divisors (551725).

1241555 is a wasteful number, since it uses less digits than its factorization.

1241555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898.

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

The square root of 1241555 is about 1114.2508694186. The cubic root of 1241555 is about 107.4785967845.

Adding to 1241555 its reverse (5551421), we get a palindrome (6792976).

The spelling of 1241555 in words is "one million, two hundred forty-one thousand, five hundred fifty-five".