1225323686 has 8 divisors (see below), whose sum is σ = 1852458240. Its totient is φ = 607837608.

The previous prime is 1225323677. The next prime is 1225323703. The reversal of 1225323686 is 6863235221.

It is a happy number.

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

It is a Curzon number.

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, 2411801 + ... + 2412308.

It is an arithmetic number, because the mean of its divisors is an integer number (231557280).

Almost surely, 2^1225323686 is an apocalyptic number.

1225323686 is a deficient number, since it is larger than the sum of its proper divisors (627134554).

1225323686 is a wasteful number, since it uses less digits than its factorization.

1225323686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824238.

The product of its digits is 103680, while the sum is 38.

The square root of 1225323686 is about 35004.6237802951. The cubic root of 1225323686 is about 1070.0817144337.

The spelling of 1225323686 in words is "one billion, two hundred twenty-five million, three hundred twenty-three thousand, six hundred eighty-six".