131631122 has 8 divisors (see below), whose sum is σ = 225653376. Its totient is φ = 56413332.

The previous prime is 131631023. The next prime is 131631131. The reversal of 131631122 is 221136131.

131631122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 131631094 and 131631103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4701098 + ... + 4701125.

It is an arithmetic number, because the mean of its divisors is an integer number (28206672).

Almost surely, 2^131631122 is an apocalyptic number.

131631122 is a deficient number, since it is larger than the sum of its proper divisors (94022254).

131631122 is an equidigital number, since it uses as much as digits as its factorization.

131631122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9402232.

The product of its digits is 216, while the sum is 20.

The square root of 131631122 is about 11473.0607075880. The cubic root of 131631122 is about 508.6896027483.

Adding to 131631122 its reverse (221136131), we get a palindrome (352767253).

The spelling of 131631122 in words is "one hundred thirty-one million, six hundred thirty-one thousand, one hundred twenty-two".