148218393 has 16 divisors (see below), whose sum is σ = 212201856. Its totient is φ = 91687680.

The previous prime is 148218383. The next prime is 148218437. The reversal of 148218393 is 393812841.

It is not a de Polignac number, because 148218393 - 2⁵ = 148218361 is a prime.

It is a super-3 number, since 3×148218393³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (148218313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16846 + ... + 24087.

It is an arithmetic number, because the mean of its divisors is an integer number (13262616).

Almost surely, 2^148218393 is an apocalyptic number.

It is an amenable number.

148218393 is a deficient number, since it is larger than the sum of its proper divisors (63983463).

148218393 is a wasteful number, since it uses less digits than its factorization.

148218393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41024.

The product of its digits is 41472, while the sum is 39.

The square root of 148218393 is about 12174.4976487738. The cubic root of 148218393 is about 529.2173008389.

The spelling of 148218393 in words is "one hundred forty-eight million, two hundred eighteen thousand, three hundred ninety-three".