1243012 has 24 divisors (see below), whose sum is σ = 2318400. Its totient is φ = 581856.

The previous prime is 1243003. The next prime is 1243013. The reversal of 1243012 is 2103421.

It is a junction number, because it is equal to n+sod(n) for n = 1242983 and 1243001.

It is not an unprimeable number, because it can be changed into a prime (1243013) 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 7 ways as a sum of consecutive naturals, for example, 5314 + ... + 5542.

It is an arithmetic number, because the mean of its divisors is an integer number (96600).

2^1243012 is an apocalyptic number.

It is an amenable number.

1243012 is a deficient number, since it is larger than the sum of its proper divisors (1075388).

1243012 is a wasteful number, since it uses less digits than its factorization.

1243012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1243012 is about 1114.9044802134. The cubic root of 1243012 is about 107.5206234094.

Adding to 1243012 its reverse (2103421), we get a palindrome (3346433).

It can be divided in two parts, 124 and 3012, that added together give a square (3136 = 56²).

The spelling of 1243012 in words is "one million, two hundred forty-three thousand, twelve".