1262643 has 8 divisors (see below), whose sum is σ = 1702800. Its totient is φ = 832128.

The previous prime is 1262633. The next prime is 1262669. The reversal of 1262643 is 3462621.

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

It is not a de Polignac number, because 1262643 - 2¹⁶ = 1197107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1262623) 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, 2098 + ... + 2631.

It is an arithmetic number, because the mean of its divisors is an integer number (212850).

2^1262643 is an apocalyptic number.

1262643 is a deficient number, since it is larger than the sum of its proper divisors (440157).

1262643 is an equidigital number, since it uses as much as digits as its factorization.

1262643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821.

The product of its digits is 1728, while the sum is 24.

The square root of 1262643 is about 1123.6738850752. The cubic root of 1262643 is about 108.0836971229.

The spelling of 1262643 in words is "one million, two hundred sixty-two thousand, six hundred forty-three".