148223785186 has 4 divisors (see below), whose sum is σ = 222335677782. Its totient is φ = 74111892592.

The previous prime is 148223785183. The next prime is 148223785211. The reversal of 148223785186 is 681587322841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 681587322841 = 80177 ⋅8501033.

It can be written as a sum of positive squares in only one way, i.e., 95768586225 + 52455198961 = 309465^2 + 229031^2 .

It is not an unprimeable number, because it can be changed into a prime (148223785183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37055946295 + ... + 37055946298.

Almost surely, 2^148223785186 is an apocalyptic number.

148223785186 is a deficient number, since it is larger than the sum of its proper divisors (74111892596).

148223785186 is an equidigital number, since it uses as much as digits as its factorization.

148223785186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74111892595.

The product of its digits is 5160960, while the sum is 55.

The spelling of 148223785186 in words is "one hundred forty-eight billion, two hundred twenty-three million, seven hundred eighty-five thousand, one hundred eighty-six".