148822189 has 2 divisors, whose sum is σ = 148822190. Its totient is φ = 148822188.

The previous prime is 148822181. The next prime is 148822273. The reversal of 148822189 is 981228841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135536164 + 13286025 = 11642^2 + 3645^2 .

It is a cyclic number.

It is not a de Polignac number, because 148822189 - 2³ = 148822181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148822181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74411094 + 74411095.

It is an arithmetic number, because the mean of its divisors is an integer number (74411095).

Almost surely, 2^148822189 is an apocalyptic number.

It is an amenable number.

148822189 is a deficient number, since it is larger than the sum of its proper divisors (1).

148822189 is an equidigital number, since it uses as much as digits as its factorization.

148822189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 43.

The square root of 148822189 is about 12199.2700191446. The cubic root of 148822189 is about 529.9349498898.

It can be divided in two parts, 14882 and 2189, that added together give a palindrome (17071).

The spelling of 148822189 in words is "one hundred forty-eight million, eight hundred twenty-two thousand, one hundred eighty-nine".