131846138 has 4 divisors (see below), whose sum is σ = 197769210. Its totient is φ = 65923068.

The previous prime is 131846137. The next prime is 131846147. The reversal of 131846138 is 831648131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 131721529 + 124609 = 11477^2 + 353^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131846098 and 131846107.

It is not an unprimeable number, because it can be changed into a prime (131846137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32961533 + ... + 32961536.

Almost surely, 2^131846138 is an apocalyptic number.

131846138 is a deficient number, since it is larger than the sum of its proper divisors (65923072).

131846138 is an equidigital number, since it uses as much as digits as its factorization.

131846138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65923071.

The product of its digits is 13824, while the sum is 35.

The square root of 131846138 is about 11482.4273566176. The cubic root of 131846138 is about 508.9664291336.

The spelling of 131846138 in words is "one hundred thirty-one million, eight hundred forty-six thousand, one hundred thirty-eight".