131156223 has 16 divisors (see below), whose sum is σ = 190999296. Its totient is φ = 79394240.

The previous prime is 131156219. The next prime is 131156237. The reversal of 131156223 is 322651131.

It is a cyclic number.

It is not a de Polignac number, because 131156223 - 2² = 131156219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131156193 and 131156202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131156243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34390 + ... + 38012.

It is an arithmetic number, because the mean of its divisors is an integer number (11937456).

Almost surely, 2^131156223 is an apocalyptic number.

131156223 is a deficient number, since it is larger than the sum of its proper divisors (59843073).

131156223 is a wasteful number, since it uses less digits than its factorization.

131156223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734.

The product of its digits is 1080, while the sum is 24.

The square root of 131156223 is about 11452.3457422486. The cubic root of 131156223 is about 508.0771151558.

The spelling of 131156223 in words is "one hundred thirty-one million, one hundred fifty-six thousand, two hundred twenty-three".