53147121 has 8 divisors (see below), whose sum is σ = 71861184. Its totient is φ = 34932240.

The previous prime is 53147071. The next prime is 53147131. The reversal of 53147121 is 12174135.

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

It is not a de Polignac number, because 53147121 - 2¹¹ = 53145073 is a prime.

It is a super-3 number, since 3×53147121³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53147091 and 53147100.

It is not an unprimeable number, because it can be changed into a prime (53147131) 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, 124546 + ... + 124971.

It is an arithmetic number, because the mean of its divisors is an integer number (8982648).

Almost surely, 2^53147121 is an apocalyptic number.

It is an amenable number.

53147121 is a deficient number, since it is larger than the sum of its proper divisors (18714063).

53147121 is a wasteful number, since it uses less digits than its factorization.

53147121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249591.

The product of its digits is 840, while the sum is 24.

The square root of 53147121 is about 7290.2071987016. The cubic root of 53147121 is about 375.9758194236.

The spelling of 53147121 in words is "fifty-three million, one hundred forty-seven thousand, one hundred twenty-one".