1286241 has 8 divisors (see below), whose sum is σ = 1870944. Its totient is φ = 779520.

The previous prime is 1286239. The next prime is 1286261. The reversal of 1286241 is 1426821.

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

It is not a de Polignac number, because 1286241 - 2¹ = 1286239 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1286261) 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, 19456 + ... + 19521.

It is an arithmetic number, because the mean of its divisors is an integer number (233868).

2^1286241 is an apocalyptic number.

1286241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1286241 is a deficient number, since it is larger than the sum of its proper divisors (584703).

1286241 is a wasteful number, since it uses less digits than its factorization.

1286241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38991.

The product of its digits is 768, while the sum is 24.

The square root of 1286241 is about 1134.1256544140. The cubic root of 1286241 is about 108.7528840562.

The spelling of 1286241 in words is "one million, two hundred eighty-six thousand, two hundred forty-one".