52040146 has 4 divisors (see below), whose sum is σ = 78060222. Its totient is φ = 26020072.

The previous prime is 52040141. The next prime is 52040159. The reversal of 52040146 is 64104025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30371121 + 21669025 = 5511^2 + 4655^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (52040141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13010035 + ... + 13010038.

Almost surely, 2^52040146 is an apocalyptic number.

52040146 is a deficient number, since it is larger than the sum of its proper divisors (26020076).

52040146 is a wasteful number, since it uses less digits than its factorization.

52040146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26020075.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 52040146 is about 7213.8856381287. The cubic root of 52040146 is about 373.3471457120.

The spelling of 52040146 in words is "fifty-two million, forty thousand, one hundred forty-six".