131344534 has 8 divisors (see below), whose sum is σ = 197065440. Its totient is φ = 65656056.

The previous prime is 131344523. The next prime is 131344537. The reversal of 131344534 is 435443131.

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

It is a super-2 number, since 2×131344534² = 34502773223354312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11692 + ... + 19984.

It is an arithmetic number, because the mean of its divisors is an integer number (24633180).

Almost surely, 2^131344534 is an apocalyptic number.

131344534 is a deficient number, since it is larger than the sum of its proper divisors (65720906).

131344534 is an equidigital number, since it uses as much as digits as its factorization.

131344534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16214.

The product of its digits is 8640, while the sum is 28.

The square root of 131344534 is about 11460.5642967526. The cubic root of 131344534 is about 508.3201605712.

Adding to 131344534 its reverse (435443131), we get a palindrome (566787665).

The spelling of 131344534 in words is "one hundred thirty-one million, three hundred forty-four thousand, five hundred thirty-four".