148012181 has 2 divisors, whose sum is σ = 148012182. Its totient is φ = 148012180.

The previous prime is 148012177. The next prime is 148012187. The reversal of 148012181 is 181210841.

148012181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148011556 + 625 = 12166^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 148012181 - 2² = 148012177 is a prime.

It is a super-2 number, since 2×148012181² = 43815211448753522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 148012181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148012187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74006090 + 74006091.

It is an arithmetic number, because the mean of its divisors is an integer number (74006091).

Almost surely, 2^148012181 is an apocalyptic number.

It is an amenable number.

148012181 is a deficient number, since it is larger than the sum of its proper divisors (1).

148012181 is an equidigital number, since it uses as much as digits as its factorization.

148012181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 148012181 is about 12166.0256863119. The cubic root of 148012181 is about 528.9717586466.

The spelling of 148012181 in words is "one hundred forty-eight million, twelve thousand, one hundred eighty-one".