131406471 has 24 divisors (see below), whose sum is σ = 217586304. Its totient is φ = 74860560.

The previous prime is 131406469. The next prime is 131406479. The reversal of 131406471 is 174604131.

It is a happy number.

131406471 is a `hidden beast` number, since 1 + 3 + 14 + 0 + 647 + 1 = 666.

It is not a de Polignac number, because 131406471 - 2¹ = 131406469 is a prime.

It is a super-3 number, since 3×131406471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131406479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18856 + ... + 24866.

It is an arithmetic number, because the mean of its divisors is an integer number (9066096).

Almost surely, 2^131406471 is an apocalyptic number.

131406471 is a deficient number, since it is larger than the sum of its proper divisors (86179833).

131406471 is a wasteful number, since it uses less digits than its factorization.

131406471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371 (or 6368 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 131406471 is about 11463.2661576010. The cubic root of 131406471 is about 508.4000493880.

The spelling of 131406471 in words is "one hundred thirty-one million, four hundred six thousand, four hundred seventy-one".