12320755 has 8 divisors (see below), whose sum is σ = 15427872. Its totient is φ = 9427968.

The previous prime is 12320753. The next prime is 12320773. The reversal of 12320755 is 55702321.

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

It is a cyclic number.

It is not a de Polignac number, because 12320755 - 2¹ = 12320753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320753) 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, 53454 + ... + 53683.

It is an arithmetic number, because the mean of its divisors is an integer number (1928484).

Almost surely, 2^12320755 is an apocalyptic number.

12320755 is a deficient number, since it is larger than the sum of its proper divisors (3107117).

12320755 is a wasteful number, since it uses less digits than its factorization.

12320755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107165.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 12320755 is about 3510.0933036032. The cubic root of 12320755 is about 230.9647878963.

The spelling of 12320755 in words is "twelve million, three hundred twenty thousand, seven hundred fifty-five".