53178145 has 8 divisors (see below), whose sum is σ = 63896256. Its totient is φ = 42487536.

The previous prime is 53178137. The next prime is 53178161. The reversal of 53178145 is 54187135.

It is a happy number.

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 53178145 - 2³ = 53178137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53178145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (7987032).

Almost surely, 2^53178145 is an apocalyptic number.

It is an amenable number.

53178145 is a deficient number, since it is larger than the sum of its proper divisors (10718111).

53178145 is a wasteful number, since it uses less digits than its factorization.

53178145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751.

The product of its digits is 16800, while the sum is 34.

The square root of 53178145 is about 7292.3346741630. The cubic root of 53178145 is about 376.0489623315.

It can be divided in two parts, 53 and 178145, that multiplied together give a triangular number (9441685 = T₄₃₄₅).

The spelling of 53178145 in words is "fifty-three million, one hundred seventy-eight thousand, one hundred forty-five".