148142161 has 4 divisors (see below), whose sum is σ = 148789300. Its totient is φ = 147495024.

The previous prime is 148142153. The next prime is 148142177. The reversal of 148142161 is 161241841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161241841 = 431 ⋅374111.

It can be written as a sum of positive squares in 2 ways, for example, as 136445761 + 11696400 = 11681^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 148142161 - 2³ = 148142153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148142101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323226 + ... + 323683.

It is an arithmetic number, because the mean of its divisors is an integer number (37197325).

Almost surely, 2^148142161 is an apocalyptic number.

It is an amenable number.

148142161 is a deficient number, since it is larger than the sum of its proper divisors (647139).

148142161 is an equidigital number, since it uses as much as digits as its factorization.

148142161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647138.

The product of its digits is 1536, while the sum is 28.

The square root of 148142161 is about 12171.3664393116. The cubic root of 148142161 is about 529.1265558894.

The spelling of 148142161 in words is "one hundred forty-eight million, one hundred forty-two thousand, one hundred sixty-one".