153166161 has 4 divisors (see below), whose sum is σ = 204221552. Its totient is φ = 102110772.

The previous prime is 153166157. The next prime is 153166171. The reversal of 153166161 is 161661351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161661351 = 3 ⋅53887117.

It is not a de Polignac number, because 153166161 - 2² = 153166157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153166171) 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, 25527691 + ... + 25527696.

It is an arithmetic number, because the mean of its divisors is an integer number (51055388).

Almost surely, 2^153166161 is an apocalyptic number.

It is an amenable number.

153166161 is a deficient number, since it is larger than the sum of its proper divisors (51055391).

153166161 is an equidigital number, since it uses as much as digits as its factorization.

153166161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51055390.

The product of its digits is 3240, while the sum is 30.

The square root of 153166161 is about 12376.0317145683. The cubic root of 153166161 is about 535.0416725917.

The spelling of 153166161 in words is "one hundred fifty-three million, one hundred sixty-six thousand, one hundred sixty-one".