131271406 has 8 divisors (see below), whose sum is σ = 225036720. Its totient is φ = 56259168.

The previous prime is 131271383. The next prime is 131271409. The reversal of 131271406 is 604172131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131271409) 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, 4688251 + ... + 4688278.

It is an arithmetic number, because the mean of its divisors is an integer number (28129590).

Almost surely, 2^131271406 is an apocalyptic number.

131271406 is a deficient number, since it is larger than the sum of its proper divisors (93765314).

131271406 is an equidigital number, since it uses as much as digits as its factorization.

131271406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9376538.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 131271406 is about 11457.3734337325. The cubic root of 131271406 is about 508.2258048172.

The spelling of 131271406 in words is "one hundred thirty-one million, two hundred seventy-one thousand, four hundred six".