131122044 has 24 divisors (see below), whose sum is σ = 339946320. Its totient is φ = 43707312.

The previous prime is 131122031. The next prime is 131122049. The reversal of 131122044 is 440221131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131122049) 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, 606939 + ... + 607154.

It is an arithmetic number, because the mean of its divisors is an integer number (14164430).

Almost surely, 2^131122044 is an apocalyptic number.

It is an amenable number.

131122044 is an abundant number, since it is smaller than the sum of its proper divisors (208824276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131122044 is a wasteful number, since it uses less digits than its factorization.

131122044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214106 (or 1214098 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 131122044 is about 11450.8534179772. The cubic root of 131122044 is about 508.0329767586.

Adding to 131122044 its reverse (440221131), we get a palindrome (571343175).

The spelling of 131122044 in words is "one hundred thirty-one million, one hundred twenty-two thousand, forty-four".