54161121 has 12 divisors (see below), whose sum is σ = 84005232. Its totient is φ = 30949128.

The previous prime is 54161117. The next prime is 54161141. The reversal of 54161121 is 12116145.

It is not a de Polignac number, because 54161121 - 2² = 54161117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54161101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184075 + ... + 184368.

It is an arithmetic number, because the mean of its divisors is an integer number (7000436).

Almost surely, 2^54161121 is an apocalyptic number.

It is an amenable number.

54161121 is a deficient number, since it is larger than the sum of its proper divisors (29844111).

54161121 is a wasteful number, since it uses less digits than its factorization.

54161121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368460 (or 368453 counting only the distinct ones).

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

The square root of 54161121 is about 7359.4239584359. The cubic root of 54161121 is about 378.3518671448.

Adding to 54161121 its reverse (12116145), we get a palindrome (66277266).

The spelling of 54161121 in words is "fifty-four million, one hundred sixty-one thousand, one hundred twenty-one".