131545473 has 8 divisors (see below), whose sum is σ = 185711328. Its totient is φ = 82538304.

The previous prime is 131545459. The next prime is 131545481. The reversal of 131545473 is 374545131.

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

It is not a de Polignac number, because 131545473 - 2⁶ = 131545409 is a prime.

It is a super-2 number, since 2×131545473² = 34608422933587458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131544473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289611 + ... + 1289712.

It is an arithmetic number, because the mean of its divisors is an integer number (23213916).

Almost surely, 2^131545473 is an apocalyptic number.

It is an amenable number.

131545473 is a deficient number, since it is larger than the sum of its proper divisors (54165855).

131545473 is a wasteful number, since it uses less digits than its factorization.

131545473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579343.

The product of its digits is 25200, while the sum is 33.

The square root of 131545473 is about 11469.3274868233. The cubic root of 131545473 is about 508.5792483776.

The spelling of 131545473 in words is "one hundred thirty-one million, five hundred forty-five thousand, four hundred seventy-three".