148518515161 has 27 divisors (see below), whose sum is σ = 156561247479. Its totient is φ = 140882961408.

The previous prime is 148518515149. The next prime is 148518515179. The reversal of 148518515161 is 161515815841.

The square root of 148518515161 is 385381.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 65193919561 + 83324595600 = 255331^2 + 288660^2 .

It is not a de Polignac number, because 148518515161 - 2¹¹ = 148518513113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148518515141) 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 in 26 ways as a sum of consecutive naturals, for example, 1084076685 + ... + 1084076821.

Almost surely, 2^148518515161 is an apocalyptic number.

148518515161 is the 385381-st square number.

148518515161 is the 192691-st centered octagonal number.

It is an amenable number.

148518515161 is a deficient number, since it is larger than the sum of its proper divisors (8042732318).

148518515161 is an frugal number, since it uses more digits than its factorization.

148518515161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 263 counting only the distinct ones).

The product of its digits is 192000, while the sum is 46.

The spelling of 148518515161 in words is "one hundred forty-eight billion, five hundred eighteen million, five hundred fifteen thousand, one hundred sixty-one".