131223386 has 64 divisors (see below), whose sum is σ = 248064000. Its totient is φ = 50808384.

The previous prime is 131223377. The next prime is 131223427. The reversal of 131223386 is 683322131.

131223386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659315 + ... + 659513.

It is an arithmetic number, because the mean of its divisors is an integer number (3876000).

Almost surely, 2^131223386 is an apocalyptic number.

131223386 is a deficient number, since it is larger than the sum of its proper divisors (116840614).

131223386 is a wasteful number, since it uses less digits than its factorization.

131223386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its digits is 5184, while the sum is 29.

The square root of 131223386 is about 11455.2776483156. The cubic root of 131223386 is about 508.1638264059.

The spelling of 131223386 in words is "one hundred thirty-one million, two hundred twenty-three thousand, three hundred eighty-six".