53145339 has 8 divisors (see below), whose sum is σ = 76311312. Its totient is φ = 32704800.

The previous prime is 53145331. The next prime is 53145343. The reversal of 53145339 is 93354135.

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

It is not a de Polignac number, because 53145339 - 2³ = 53145331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53145331) 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, 681312 + ... + 681389.

It is an arithmetic number, because the mean of its divisors is an integer number (9538914).

Almost surely, 2^53145339 is an apocalyptic number.

53145339 is a deficient number, since it is larger than the sum of its proper divisors (23165973).

53145339 is a wasteful number, since it uses less digits than its factorization.

53145339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362717.

The product of its digits is 24300, while the sum is 33.

The square root of 53145339 is about 7290.0849789286. The cubic root of 53145339 is about 375.9716172743.

The spelling of 53145339 in words is "fifty-three million, one hundred forty-five thousand, three hundred thirty-nine".