1243454 has 8 divisors (see below), whose sum is σ = 1873368. Its totient is φ = 619000.

The previous prime is 1243439. The next prime is 1243471. The reversal of 1243454 is 4543421.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737 + ... + 1740.

It is an arithmetic number, because the mean of its divisors is an integer number (234171).

2^1243454 is an apocalyptic number.

1243454 is a deficient number, since it is larger than the sum of its proper divisors (629914).

1243454 is a wasteful number, since it uses less digits than its factorization.

1243454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730.

The product of its digits is 1920, while the sum is 23.

The square root of 1243454 is about 1115.1026858545. The cubic root of 1243454 is about 107.5333662426.

Adding to 1243454 its reverse (4543421), we get a palindrome (5786875).

The spelling of 1243454 in words is "one million, two hundred forty-three thousand, four hundred fifty-four".