54121161 has 4 divisors (see below), whose sum is σ = 72161552. Its totient is φ = 36080772.

The previous prime is 54121127. The next prime is 54121169. The reversal of 54121161 is 16112145.

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.

It is not a de Polignac number, because 54121161 - 2⁷ = 54121033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54121169) 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, 9020191 + ... + 9020196.

It is an arithmetic number, because the mean of its divisors is an integer number (18040388).

Almost surely, 2^54121161 is an apocalyptic number.

It is an amenable number.

54121161 is a deficient number, since it is larger than the sum of its proper divisors (18040391).

54121161 is a wasteful number, since it uses less digits than its factorization.

54121161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18040390.

The product of its digits is 240, while the sum is 21.

The square root of 54121161 is about 7356.7085710935. The cubic root of 54121161 is about 378.2587950905.

The spelling of 54121161 in words is "fifty-four million, one hundred twenty-one thousand, one hundred sixty-one".