125481 has 8 divisors (see below), whose sum is σ = 169024. Its totient is φ = 82800.

The previous prime is 125471. The next prime is 125497. The reversal of 125481 is 184521.

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

It is not a de Polignac number, because 125481 - 2⁷ = 125353 is a prime.

It is a super-2 number, since 2×125481² = 31490962722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

125481 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125481.

It is not an unprimeable number, because it can be changed into a prime (125441) 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, 315 + ... + 591.

It is an arithmetic number, because the mean of its divisors is an integer number (21128).

2¹²⁵⁴⁸¹ is an apocalyptic number.

It is an amenable number.

125481 is a deficient number, since it is larger than the sum of its proper divisors (43543).

125481 is a wasteful number, since it uses less digits than its factorization.

125481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its digits is 320, while the sum is 21.

The square root of 125481 is about 354.2329741851. The cubic root of 125481 is about 50.0640512471.

It can be divided in two parts, 125 and 481, that added together give a palindrome (606).

The spelling of 125481 in words is "one hundred twenty-five thousand, four hundred eighty-one".