52120130 has 16 divisors (see below), whose sum is σ = 99335160. Its totient is φ = 19621632.

The previous prime is 52120121. The next prime is 52120183. The reversal of 52120130 is 3102125.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50112241 + 2007889 = 7079^2 + 1417^2 .

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 153125 + ... + 153464.

Almost surely, 2^52120130 is an apocalyptic number.

52120130 is a deficient number, since it is larger than the sum of its proper divisors (47215030).

52120130 is a wasteful number, since it uses less digits than its factorization.

52120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306613.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 52120130 is about 7219.4272626019. The cubic root of 52120130 is about 373.5383219134.

Adding to 52120130 its reverse (3102125), we get a palindrome (55222255).

The spelling of 52120130 in words is "fifty-two million, one hundred twenty thousand, one hundred thirty".