131533338 has 8 divisors (see below), whose sum is σ = 263066688. Its totient is φ = 43844444.

The previous prime is 131533331. The next prime is 131533349. The reversal of 131533338 is 833335131.

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

131533338 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131533331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10961106 + ... + 10961117.

It is an arithmetic number, because the mean of its divisors is an integer number (32883336).

Almost surely, 2^131533338 is an apocalyptic number.

131533338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131533338 is a wasteful number, since it uses less digits than its factorization.

131533338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21922228.

The product of its digits is 9720, while the sum is 30.

The square root of 131533338 is about 11468.7984549385. The cubic root of 131533338 is about 508.5636091748.

Adding to 131533338 its reverse (833335131), we get a palindrome (964868469).

It can be divided in two parts, 13 and 1533338, that added together give a palindrome (1533351).

The spelling of 131533338 in words is "one hundred thirty-one million, five hundred thirty-three thousand, three hundred thirty-eight".