53142181 has 8 divisors (see below), whose sum is σ = 55075680. Its totient is φ = 51215472.

The previous prime is 53142169. The next prime is 53142209. The reversal of 53142181 is 18124135.

53142181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53142181 - 2⁵ = 53142149 is a prime.

It is a super-2 number, since 2×53142181² = 5648182802873522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53142781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18466 + ... + 21148.

It is an arithmetic number, because the mean of its divisors is an integer number (6884460).

Almost surely, 2^53142181 is an apocalyptic number.

It is an amenable number.

53142181 is a deficient number, since it is larger than the sum of its proper divisors (1933499).

53142181 is a wasteful number, since it uses less digits than its factorization.

53142181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395.

The product of its digits is 960, while the sum is 25.

The square root of 53142181 is about 7289.8683801561. The cubic root of 53142181 is about 375.9641701372.

The spelling of 53142181 in words is "fifty-three million, one hundred forty-two thousand, one hundred eighty-one".