154405161 has 6 divisors (see below), whose sum is σ = 223029690. Its totient is φ = 102936768.

The previous prime is 154405159. The next prime is 154405177. The reversal of 154405161 is 161504451.

It can be written as a sum of positive squares in only one way, i.e., 91298025 + 63107136 = 9555^2 + 7944^2 .

It is not a de Polignac number, because 154405161 - 2¹ = 154405159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154405151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8578056 + ... + 8578073.

It is an arithmetic number, because the mean of its divisors is an integer number (37171615).

Almost surely, 2^154405161 is an apocalyptic number.

It is an amenable number.

154405161 is a deficient number, since it is larger than the sum of its proper divisors (68624529).

154405161 is a wasteful number, since it uses less digits than its factorization.

154405161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17156135 (or 17156132 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 154405161 is about 12425.9873249573. The cubic root of 154405161 is about 536.4804958881.

The spelling of 154405161 in words is "one hundred fifty-four million, four hundred five thousand, one hundred sixty-one".