148393613 has 4 divisors (see below), whose sum is σ = 148868028. Its totient is φ = 147919200.

The previous prime is 148393601. The next prime is 148393633. The reversal of 148393613 is 316393841.

It is a happy number.

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 32228329 + 116165284 = 5677^2 + 10778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148393613 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 (148393633) 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 in 3 ways as a sum of consecutive naturals, for example, 236738 + ... + 237363.

It is an arithmetic number, because the mean of its divisors is an integer number (37217007).

Almost surely, 2^148393613 is an apocalyptic number.

It is an amenable number.

148393613 is a deficient number, since it is larger than the sum of its proper divisors (474415).

148393613 is an equidigital number, since it uses as much as digits as its factorization.

148393613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474414.

The product of its digits is 46656, while the sum is 38.

The square root of 148393613 is about 12181.6917133869. The cubic root of 148393613 is about 529.4257611088.

The spelling of 148393613 in words is "one hundred forty-eight million, three hundred ninety-three thousand, six hundred thirteen".