481531 has 2 divisors, whose sum is σ = 481532. Its totient is φ = 481530.

The previous prime is 481513. The next prime is 481549. The reversal of 481531 is 135184.

Together with previous prime (481513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (481513) and next prime (481549).

It is a cyclic number.

It is not a de Polignac number, because 481531 - 2¹⁷ = 350459 is a prime.

It is a super-2 number, since 2×481531² = 463744207922, which contains 22 as substring.

481531 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (481501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240765 + 240766.

It is an arithmetic number, because the mean of its divisors is an integer number (240766).

2⁴⁸¹⁵³¹ is an apocalyptic number.

481531 is a deficient number, since it is larger than the sum of its proper divisors (1).

481531 is an equidigital number, since it uses as much as digits as its factorization.

481531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 22.

The square root of 481531 is about 693.9243474616. The cubic root of 481531 is about 78.3805097845.

The spelling of 481531 in words is "four hundred eighty-one thousand, five hundred thirty-one".