1241845 has 16 divisors (see below), whose sum is σ = 1654848. Its totient is φ = 887040.

The previous prime is 1241827. The next prime is 1241869. The reversal of 1241845 is 5481421.

It is not a de Polignac number, because 1241845 - 2⁵ = 1241813 is a prime.

It is a Duffinian number.

1241845 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3517 + ... + 3853.

It is an arithmetic number, because the mean of its divisors is an integer number (103428).

2^1241845 is an apocalyptic number.

It is an amenable number.

1241845 is a deficient number, since it is larger than the sum of its proper divisors (413003).

1241845 is a wasteful number, since it uses less digits than its factorization.

1241845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its digits is 1280, while the sum is 25.

The square root of 1241845 is about 1114.3809940949. The cubic root of 1241845 is about 107.4869643469.

The spelling of 1241845 in words is "one million, two hundred forty-one thousand, eight hundred forty-five".