148481 has 4 divisors (see below), whose sum is σ = 152532. Its totient is φ = 144432.

The previous prime is 148471. The next prime is 148483. The reversal of 148481 is 184841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128881 + 19600 = 359^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 148481 - 2¹⁰ = 147457 is a prime.

It is a super-2 number, since 2×148481² = 44093214722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148481.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148481.

It is not an unprimeable number, because it can be changed into a prime (148483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1970 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (38133).

It is a Proth number, since it is equal to 145 ⋅ 2¹⁰ + 1 and 145 < 2¹⁰.

2¹⁴⁸⁴⁸¹ is an apocalyptic number.

It is an amenable number.

148481 is a deficient number, since it is larger than the sum of its proper divisors (4051).

148481 is an equidigital number, since it uses as much as digits as its factorization.

148481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050.

The product of its digits is 1024, while the sum is 26.

The square root of 148481 is about 385.3323241048. The cubic root of 148481 is about 52.9529664616.

The spelling of 148481 in words is "one hundred forty-eight thousand, four hundred eighty-one".