131457 has 8 divisors (see below), whose sum is σ = 181440. Its totient is φ = 84560.

The previous prime is 131449. The next prime is 131477. The reversal of 131457 is 754131.

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

It is a cyclic number.

It is not a de Polignac number, because 131457 - 2³ = 131449 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 131457.

It is not an unprimeable number, because it can be changed into a prime (131437) 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, 669 + ... + 842.

It is an arithmetic number, because the mean of its divisors is an integer number (22680).

2¹³¹⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

131457 is a deficient number, since it is larger than the sum of its proper divisors (49983).

131457 is a wasteful number, since it uses less digits than its factorization.

131457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543.

The product of its digits is 420, while the sum is 21.

The square root of 131457 is about 362.5699932427. The cubic root of 131457 is about 50.8465205119.

Adding to 131457 its reverse (754131), we get a palindrome (885588).

The spelling of 131457 in words is "one hundred thirty-one thousand, four hundred fifty-seven".