148422178 has 8 divisors (see below), whose sum is σ = 224127900. Its totient is φ = 73712880.

The previous prime is 148422149. The next prime is 148422179. The reversal of 148422178 is 871224841.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 146240649 + 2181529 = 12093^2 + 1477^2 .

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

It is not an unprimeable number, because it can be changed into a prime (148422179) 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, 248733 + ... + 249328.

Almost surely, 2^148422178 is an apocalyptic number.

148422178 is a deficient number, since it is larger than the sum of its proper divisors (75705722).

148422178 is a wasteful number, since it uses less digits than its factorization.

148422178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498212.

The product of its digits is 28672, while the sum is 37.

The square root of 148422178 is about 12182.8641131714. The cubic root of 148422178 is about 529.4597294993.

It can be divided in two parts, 14842 and 2178, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 148422178 in words is "one hundred forty-eight million, four hundred twenty-two thousand, one hundred seventy-eight".