131424434 has 8 divisors (see below), whose sum is σ = 201944988. Its totient is φ = 64109440.

The previous prime is 131424421. The next prime is 131424437. The reversal of 131424434 is 434424131.

It can be written as a sum of positive squares in 2 ways, for example, as 131033809 + 390625 = 11447^2 + 625^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131424437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801287 + ... + 801450.

Almost surely, 2^131424434 is an apocalyptic number.

131424434 is a deficient number, since it is larger than the sum of its proper divisors (70520554).

131424434 is a wasteful number, since it uses less digits than its factorization.

131424434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602780.

The product of its digits is 4608, while the sum is 26.

The square root of 131424434 is about 11464.0496335283. The cubic root of 131424434 is about 508.4232140868.

Adding to 131424434 its reverse (434424131), we get a palindrome (565848565).

It can be divided in two parts, 13142 and 4434, that added together give a cube (17576 = 26³).

The spelling of 131424434 in words is "one hundred thirty-one million, four hundred twenty-four thousand, four hundred thirty-four".