131344634 has 4 divisors (see below), whose sum is σ = 197016954. Its totient is φ = 65672316.

The previous prime is 131344579. The next prime is 131344637. The reversal of 131344634 is 436443131.

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., 123765625 + 7579009 = 11125^2 + 2753^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131344597 and 131344606.

It is not an unprimeable number, because it can be changed into a prime (131344637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836157 + ... + 32836160.

Almost surely, 2^131344634 is an apocalyptic number.

131344634 is a deficient number, since it is larger than the sum of its proper divisors (65672320).

131344634 is an equidigital number, since it uses as much as digits as its factorization.

131344634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65672319.

The product of its digits is 10368, while the sum is 29.

The square root of 131344634 is about 11460.5686595387. The cubic root of 131344634 is about 508.3202895754.

Adding to 131344634 its reverse (436443131), we get a palindrome (567787765).

The spelling of 131344634 in words is "one hundred thirty-one million, three hundred forty-four thousand, six hundred thirty-four".