147481 has 2 divisors, whose sum is σ = 147482. Its totient is φ = 147480.

The previous prime is 147457. The next prime is 147487. The reversal of 147481 is 184741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147456 + 25 = 384^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 147481 - 2⁵ = 147449 is a prime.

It is a super-2 number, since 2×147481² = 43501290722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73740 + 73741.

It is an arithmetic number, because the mean of its divisors is an integer number (73741).

2¹⁴⁷⁴⁸¹ is an apocalyptic number.

It is an amenable number.

147481 is a deficient number, since it is larger than the sum of its proper divisors (1).

147481 is an equidigital number, since it uses as much as digits as its factorization.

147481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896, while the sum is 25.

The square root of 147481 is about 384.0325507037. The cubic root of 147481 is about 52.8338214972.

Subtracting from 147481 its sum of digits (25), we obtain a square (147456 = 384²).

It can be divided in two parts, 147 and 481, that multiplied together give a palindrome (70707).

The spelling of 147481 in words is "one hundred forty-seven thousand, four hundred eighty-one".