1241287 has 8 divisors (see below), whose sum is σ = 1340640. Its totient is φ = 1145760.

The previous prime is 1241269. The next prime is 1241291. The reversal of 1241287 is 7821421.

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 1241287 - 2⁷ = 1241159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

2^1241287 is an apocalyptic number.

1241287 is a deficient number, since it is larger than the sum of its proper divisors (99353).

1241287 is a wasteful number, since it uses less digits than its factorization.

1241287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913.

The product of its digits is 896, while the sum is 25.

The square root of 1241287 is about 1114.1306027571. The cubic root of 1241287 is about 107.4708628442.

The spelling of 1241287 in words is "one million, two hundred forty-one thousand, two hundred eighty-seven".