131338 has 8 divisors (see below), whose sum is σ = 199332. Its totient is φ = 64896.

The previous prime is 131321. The next prime is 131357. The reversal of 131338 is 833131.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 13689 = 343^2 + 117^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145 + ... + 532.

2¹³¹³³⁸ is an apocalyptic number.

131338 is a deficient number, since it is larger than the sum of its proper divisors (67994).

131338 is an equidigital number, since it uses as much as digits as its factorization.

131338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its digits is 216, while the sum is 19.

The square root of 131338 is about 362.4058498424. The cubic root of 131338 is about 50.8311731293.

Adding to 131338 its reverse (833131), we get a palindrome (964469).

It can be divided in two parts, 1313 and 38, that multiplied together give a palindrome (49894).

The spelling of 131338 in words is "one hundred thirty-one thousand, three hundred thirty-eight".