131451 has 8 divisors (see below), whose sum is σ = 179520. Its totient is φ = 85512.

The previous prime is 131449. The next prime is 131477. The reversal of 131451 is 154131.

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

It is not a de Polignac number, because 131451 - 2¹ = 131449 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 131451.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 131451.

It is not an unprimeable number, because it can be changed into a prime (131431) 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, 381 + ... + 638.

It is an arithmetic number, because the mean of its divisors is an integer number (22440).

2¹³¹⁴⁵¹ is an apocalyptic number.

131451 is a deficient number, since it is larger than the sum of its proper divisors (48069).

131451 is a wasteful number, since it uses less digits than its factorization.

131451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065.

The product of its digits is 60, while the sum is 15.

The square root of 131451 is about 362.5617188838. The cubic root of 131451 is about 50.8457469161.

Adding to 131451 its reverse (154131), we get a palindrome (285582).

The spelling of 131451 in words is "one hundred thirty-one thousand, four hundred fifty-one".