148180121 has 4 divisors (see below), whose sum is σ = 148312500. Its totient is φ = 148047744.

The previous prime is 148180117. The next prime is 148180129. The reversal of 148180121 is 121081841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121081841 = 8831 ⋅13711.

It can be written as a sum of positive squares in 2 ways, for example, as 36772096 + 111408025 = 6064^2 + 10555^2 .

It is a cyclic number.

It is not a de Polignac number, because 148180121 - 2² = 148180117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148180129) 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, 64496 + ... + 66753.

It is an arithmetic number, because the mean of its divisors is an integer number (37078125).

Almost surely, 2^148180121 is an apocalyptic number.

It is an amenable number.

148180121 is a deficient number, since it is larger than the sum of its proper divisors (132379).

148180121 is a wasteful number, since it uses less digits than its factorization.

148180121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132378.

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

The square root of 148180121 is about 12172.9257370609. The cubic root of 148180121 is about 529.1717465553.

The spelling of 148180121 in words is "one hundred forty-eight million, one hundred eighty thousand, one hundred twenty-one".