131315434 has 8 divisors (see below), whose sum is σ = 197058240. Its totient is φ = 65629356.

The previous prime is 131315417. The next prime is 131315447. The reversal of 131315434 is 434513131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131315399 and 131315408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7824 + ... + 17995.

It is an arithmetic number, because the mean of its divisors is an integer number (24632280).

Almost surely, 2^131315434 is an apocalyptic number.

131315434 is a deficient number, since it is larger than the sum of its proper divisors (65742806).

131315434 is a wasteful number, since it uses less digits than its factorization.

131315434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28364.

The product of its digits is 2160, while the sum is 25.

The square root of 131315434 is about 11459.2946554315. The cubic root of 131315434 is about 508.2826175567.

Adding to 131315434 its reverse (434513131), we get a palindrome (565828565).

The spelling of 131315434 in words is "one hundred thirty-one million, three hundred fifteen thousand, four hundred thirty-four".