131332338 has 12 divisors (see below), whose sum is σ = 284553438. Its totient is φ = 43777440.

The previous prime is 131332319. The next prime is 131332339. The reversal of 131332338 is 833233131.

It can be written as a sum of positive squares in only one way, i.e., 69505569 + 61826769 = 8337^2 + 7863^2 .

It is not an unprimeable number, because it can be changed into a prime (131332339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3648103 + ... + 3648138.

Almost surely, 2^131332338 is an apocalyptic number.

131332338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131332338 is an abundant number, since it is smaller than the sum of its proper divisors (153221100).

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

131332338 is a wasteful number, since it uses less digits than its factorization.

131332338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7296249 (or 7296246 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 131332338 is about 11460.0321989076. The cubic root of 131332338 is about 508.3044267238.

Adding to 131332338 its reverse (833233131), we get a palindrome (964565469).

The spelling of 131332338 in words is "one hundred thirty-one million, three hundred thirty-two thousand, three hundred thirty-eight".