131522022 has 32 divisors (see below), whose sum is σ = 293155200. Its totient is φ = 43708104.

The previous prime is 131522003. The next prime is 131522023. The reversal of 131522022 is 220225131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131521986 and 131522004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131522023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15229 + ... + 22247.

It is an arithmetic number, because the mean of its divisors is an integer number (9161100).

Almost surely, 2^131522022 is an apocalyptic number.

131522022 is an abundant number, since it is smaller than the sum of its proper divisors (161633178).

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

131522022 is a wasteful number, since it uses less digits than its factorization.

131522022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377 (or 7371 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 131522022 is about 11468.3051058123. The cubic root of 131522022 is about 508.5490246066.

Adding to 131522022 its reverse (220225131), we get a palindrome (351747153).

The spelling of 131522022 in words is "one hundred thirty-one million, five hundred twenty-two thousand, twenty-two".