146870161 has 3 divisors (see below), whose sum is σ = 146882281. Its totient is φ = 146858042.

The previous prime is 146870147. The next prime is 146870177. The reversal of 146870161 is 161078641.

The square root of 146870161 is 12119.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 161078641 = 1747 ⋅92203.

It is not a de Polignac number, because 146870161 - 2¹⁹ = 146345873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146070161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6060 + ... + 18178.

Almost surely, 2^146870161 is an apocalyptic number.

146870161 is the 12119-th square number.

146870161 is the 6060-th centered octagonal number.

It is an amenable number.

146870161 is a deficient number, since it is larger than the sum of its proper divisors (12120).

146870161 is an frugal number, since it uses more digits than its factorization.

146870161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24238 (or 12119 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The cubic root of 146870161 is about 527.6077792393.

The spelling of 146870161 in words is "one hundred forty-six million, eight hundred seventy thousand, one hundred sixty-one".