148228369 has 4 divisors (see below), whose sum is σ = 148402996. Its totient is φ = 148053744.

The previous prime is 148228361. The next prime is 148228387. The reversal of 148228369 is 963822841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 963822841 = 569 ⋅1693889.

It can be written as a sum of positive squares in 2 ways, for example, as 3940225 + 144288144 = 1985^2 + 12012^2 .

It is a cyclic number.

It is not a de Polignac number, because 148228369 - 2³ = 148228361 is a prime.

It is a super-2 number, since 2×148228369² = 43943298752800322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148228361) 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, 86034 + ... + 87739.

It is an arithmetic number, because the mean of its divisors is an integer number (37100749).

Almost surely, 2^148228369 is an apocalyptic number.

It is an amenable number.

148228369 is a deficient number, since it is larger than the sum of its proper divisors (174627).

148228369 is an equidigital number, since it uses as much as digits as its factorization.

148228369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174626.

The product of its digits is 165888, while the sum is 43.

The square root of 148228369 is about 12174.9073507768. The cubic root of 148228369 is about 529.2291737543.

The spelling of 148228369 in words is "one hundred forty-eight million, two hundred twenty-eight thousand, three hundred sixty-nine".