148225138 has 8 divisors (see below), whose sum is σ = 225469440. Its totient is φ = 73068660.

The previous prime is 148225109. The next prime is 148225163. The reversal of 148225138 is 831522841.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521778 + ... + 522061.

It is an arithmetic number, because the mean of its divisors is an integer number (28183680).

Almost surely, 2^148225138 is an apocalyptic number.

148225138 is a deficient number, since it is larger than the sum of its proper divisors (77244302).

148225138 is a wasteful number, since it uses less digits than its factorization.

148225138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043912.

The product of its digits is 15360, while the sum is 34.

The square root of 148225138 is about 12174.7746591056. The cubic root of 148225138 is about 529.2253284448.

Adding to 148225138 its reverse (831522841), we get a palindrome (979747979).

The spelling of 148225138 in words is "one hundred forty-eight million, two hundred twenty-five thousand, one hundred thirty-eight".