1243068825 has 48 divisors (see below), whose sum is σ = 2180217600. Its totient is φ = 623188800.

The previous prime is 1243068821. The next prime is 1243068877. The reversal of 1243068825 is 5288603421.

It is not a de Polignac number, because 1243068825 - 2² = 1243068821 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1243068821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183346 + ... + 190004.

It is an arithmetic number, because the mean of its divisors is an integer number (45421200).

Almost surely, 2^1243068825 is an apocalyptic number.

1243068825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1243068825 is a deficient number, since it is larger than the sum of its proper divisors (937148775).

1243068825 is a wasteful number, since it uses less digits than its factorization.

1243068825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822 (or 6817 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 1243068825 is about 35257.1811834128. The cubic root of 1243068825 is about 1075.2226183988. Note that the first 3 decimals are identical.

The spelling of 1243068825 in words is "one billion, two hundred forty-three million, sixty-eight thousand, eight hundred twenty-five".