131222055 has 8 divisors (see below), whose sum is σ = 209955312. Its totient is φ = 69985088.

The previous prime is 131222033. The next prime is 131222059. The reversal of 131222055 is 550222131.

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 131222055 - 2⁵ = 131222023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222059) 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, 4374054 + ... + 4374083.

It is an arithmetic number, because the mean of its divisors is an integer number (26244414).

Almost surely, 2^131222055 is an apocalyptic number.

131222055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131222055 is a deficient number, since it is larger than the sum of its proper divisors (78733257).

131222055 is an equidigital number, since it uses as much as digits as its factorization.

131222055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748145.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 131222055 is about 11455.2195526755. The cubic root of 131222055 is about 508.1621082966.

Adding to 131222055 its reverse (550222131), we get a palindrome (681444186).

The spelling of 131222055 in words is "one hundred thirty-one million, two hundred twenty-two thousand, fifty-five".