1243054936 has 32 divisors (see below), whose sum is σ = 2487974400. Its totient is φ = 580517280.

The previous prime is 1243054867. The next prime is 1243054937. The reversal of 1243054936 is 6394503421.

It is a junction number, because it is equal to n+sod(n) for n = 1243054895 and 1243054904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243054937) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46800 + ... + 68383.

It is an arithmetic number, because the mean of its divisors is an integer number (77749200).

Almost surely, 2^1243054936 is an apocalyptic number.

It is an amenable number.

1243054936 is an abundant number, since it is smaller than the sum of its proper divisors (1244919464).

1243054936 is a wasteful number, since it uses less digits than its factorization.

1243054936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115279 (or 115275 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 1243054936 is about 35256.9842158969. The cubic root of 1243054936 is about 1075.2186138411.

The spelling of 1243054936 in words is "one billion, two hundred forty-three million, fifty-four thousand, nine hundred thirty-six".