131409835 has 16 divisors (see below), whose sum is σ = 160380000. Its totient is φ = 103350016.

The previous prime is 131409823. The next prime is 131409869. The reversal of 131409835 is 538904131.

It is a cyclic number.

It is not a de Polignac number, because 131409835 - 2¹⁵ = 131377067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131409835.

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 15 ways as a sum of consecutive naturals, for example, 86916 + ... + 88414.

It is an arithmetic number, because the mean of its divisors is an integer number (10023750).

Almost surely, 2^131409835 is an apocalyptic number.

131409835 is a deficient number, since it is larger than the sum of its proper divisors (28970165).

131409835 is a wasteful number, since it uses less digits than its factorization.

131409835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 131409835 is about 11463.4128862220. The cubic root of 131409835 is about 508.4043876907.

The spelling of 131409835 in words is "one hundred thirty-one million, four hundred nine thousand, eight hundred thirty-five".