131342434 has 16 divisors (see below), whose sum is σ = 203376096. Its totient is φ = 63575200.

The previous prime is 131342429. The next prime is 131342441. The reversal of 131342434 is 434243131.

It is a junction number, because it is equal to n+sod(n) for n = 131342399 and 131342408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4629 + ... + 16855.

It is an arithmetic number, because the mean of its divisors is an integer number (12711006).

Almost surely, 2^131342434 is an apocalyptic number.

131342434 is a deficient number, since it is larger than the sum of its proper divisors (72033662).

131342434 is a wasteful number, since it uses less digits than its factorization.

131342434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12401.

The product of its digits is 3456, while the sum is 25.

The square root of 131342434 is about 11460.4726778611. The cubic root of 131342434 is about 508.3174514671.

Adding to 131342434 its reverse (434243131), we get a palindrome (565585565).

The spelling of 131342434 in words is "one hundred thirty-one million, three hundred forty-two thousand, four hundred thirty-four".