148613 has 4 divisors (see below), whose sum is σ = 149388. Its totient is φ = 147840.

The previous prime is 148609. The next prime is 148627. The reversal of 148613 is 316841.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 316841 = 7 ⋅45263.

It can be written as a sum of positive squares in 2 ways, for example, as 20449 + 128164 = 143^2 + 358^2 .

It is a cyclic number.

It is not a de Polignac number, because 148613 - 2² = 148609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148633) 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, 143 + ... + 563.

It is an arithmetic number, because the mean of its divisors is an integer number (37347).

2¹⁴⁸⁶¹³ is an apocalyptic number.

It is an amenable number.

148613 is a deficient number, since it is larger than the sum of its proper divisors (775).

148613 is an equidigital number, since it uses as much as digits as its factorization.

148613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its digits is 576, while the sum is 23.

The square root of 148613 is about 385.5035667799. The cubic root of 148613 is about 52.9686535894.

The spelling of 148613 in words is "one hundred forty-eight thousand, six hundred thirteen".