1268481 has 4 divisors (see below), whose sum is σ = 1691312. Its totient is φ = 845652.

The previous prime is 1268479. The next prime is 1268537. The reversal of 1268481 is 1848621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1848621 = 3 ⋅616207.

It is not a de Polignac number, because 1268481 - 2¹ = 1268479 is a prime.

It is a super-2 number, since 2×1268481² = 3218088094722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211411 + ... + 211416.

It is an arithmetic number, because the mean of its divisors is an integer number (422828).

2^1268481 is an apocalyptic number.

It is an amenable number.

1268481 is a deficient number, since it is larger than the sum of its proper divisors (422831).

1268481 is an equidigital number, since it uses as much as digits as its factorization.

1268481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422830.

The product of its digits is 3072, while the sum is 30.

The square root of 1268481 is about 1126.2686180481. The cubic root of 1268481 is about 108.2500208901.

The spelling of 1268481 in words is "one million, two hundred sixty-eight thousand, four hundred eighty-one".