53143961 has 8 divisors (see below), whose sum is σ = 59720640. Its totient is φ = 46922832.

The previous prime is 53143943. The next prime is 53143963. The reversal of 53143961 is 16934135.

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 53143961 - 2⁶ = 53143897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53143963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88571 + ... + 89168.

It is an arithmetic number, because the mean of its divisors is an integer number (7465080).

Almost surely, 2^53143961 is an apocalyptic number.

It is an amenable number.

53143961 is a deficient number, since it is larger than the sum of its proper divisors (6576679).

53143961 is a wasteful number, since it uses less digits than its factorization.

53143961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177775.

The product of its digits is 9720, while the sum is 32.

The square root of 53143961 is about 7289.9904663861. The cubic root of 53143961 is about 375.9683677365.

The spelling of 53143961 in words is "fifty-three million, one hundred forty-three thousand, nine hundred sixty-one".