1213043 has 8 divisors (see below), whose sum is σ = 1363488. Its totient is φ = 1070784.

The previous prime is 1213033. The next prime is 1213049. The reversal of 1213043 is 3403121.

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

It is not a de Polignac number, because 1213043 - 2⁴ = 1213027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213049) 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, 1730 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (170436).

2^1213043 is an apocalyptic number.

1213043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1213043 is a deficient number, since it is larger than the sum of its proper divisors (150445).

1213043 is a wasteful number, since it uses less digits than its factorization.

1213043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1213043 is about 1101.3823132773. The cubic root of 1213043 is about 106.6494774819.

Adding to 1213043 its reverse (3403121), we get a palindrome (4616164).

The spelling of 1213043 in words is "one million, two hundred thirteen thousand, forty-three".