154170161 has 32 divisors (see below), whose sum is σ = 180403200. Its totient is φ = 130775040.

The previous prime is 154170103. The next prime is 154170217. The reversal of 154170161 is 161071451.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 154170161 - 2¹⁴ = 154153777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154170161.

It is not an unprimeable number, because it can be changed into a prime (154176161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 891071 + ... + 891243.

It is an arithmetic number, because the mean of its divisors is an integer number (5637600).

Almost surely, 2^154170161 is an apocalyptic number.

It is an amenable number.

154170161 is a deficient number, since it is larger than the sum of its proper divisors (26233039).

154170161 is a wasteful number, since it uses less digits than its factorization.

154170161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 154170161 is about 12416.5277352406. The cubic root of 154170161 is about 536.2081886466.

The spelling of 154170161 in words is "one hundred fifty-four million, one hundred seventy thousand, one hundred sixty-one".