1248629 has 4 divisors (see below), whose sum is σ = 1251180. Its totient is φ = 1246080.

The previous prime is 1248593. The next prime is 1248631. The reversal of 1248629 is 9268421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 806404 + 442225 = 898^2 + 665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248629 - 2¹² = 1244533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1248595 and 1248604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248229) 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 3 ways as a sum of consecutive naturals, for example, 284 + ... + 1605.

It is an arithmetic number, because the mean of its divisors is an integer number (312795).

2^1248629 is an apocalyptic number.

It is an amenable number.

1248629 is a deficient number, since it is larger than the sum of its proper divisors (2551).

1248629 is an equidigital number, since it uses as much as digits as its factorization.

1248629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550.

The product of its digits is 6912, while the sum is 32.

The square root of 1248629 is about 1117.4206906980. The cubic root of 1248629 is about 107.6823370282.

The spelling of 1248629 in words is "one million, two hundred forty-eight thousand, six hundred twenty-nine".