131409834 has 8 divisors (see below), whose sum is σ = 262819680. Its totient is φ = 43803276.

The previous prime is 131409823. The next prime is 131409869. The reversal of 131409834 is 438904131.

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

131409834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 131409795 and 131409804.

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, 10950814 + ... + 10950825.

It is an arithmetic number, because the mean of its divisors is an integer number (32852460).

Almost surely, 2^131409834 is an apocalyptic number.

131409834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131409834 is a wasteful number, since it uses less digits than its factorization.

131409834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21901644.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 131409834 is about 11463.4128426049. The cubic root of 131409834 is about 508.4043864011.

It can be divided in two parts, 131 and 409834, that added together give a triangular number (409965 = T₉₀₅).

The spelling of 131409834 in words is "one hundred thirty-one million, four hundred nine thousand, eight hundred thirty-four".