131409446 has 16 divisors (see below), whose sum is σ = 225478176. Its totient is φ = 56267136.

The previous prime is 131409409. The next prime is 131409493. The reversal of 131409446 is 644904131.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14540 + ... + 21776.

It is an arithmetic number, because the mean of its divisors is an integer number (14092386).

Almost surely, 2^131409446 is an apocalyptic number.

131409446 is a deficient number, since it is larger than the sum of its proper divisors (94068730).

131409446 is a wasteful number, since it uses less digits than its factorization.

131409446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8543.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 131409446 is about 11463.3959191856. The cubic root of 131409446 is about 508.4038860299.

The spelling of 131409446 in words is "one hundred thirty-one million, four hundred nine thousand, four hundred forty-six".