131243134 has 24 divisors (see below), whose sum is σ = 218658384. Its totient is φ = 59030400.

The previous prime is 131243117. The next prime is 131243141. The reversal of 131243134 is 431342131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20679 + ... + 26269.

It is an arithmetic number, because the mean of its divisors is an integer number (9110766).

Almost surely, 2^131243134 is an apocalyptic number.

131243134 is a deficient number, since it is larger than the sum of its proper divisors (87415250).

131243134 is a wasteful number, since it uses less digits than its factorization.

131243134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712 (or 5701 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 131243134 is about 11456.1395766637. The cubic root of 131243134 is about 508.1893165673.

Adding to 131243134 its reverse (431342131), we get a palindrome (562585265).

The spelling of 131243134 in words is "one hundred thirty-one million, two hundred forty-three thousand, one hundred thirty-four".