2520135146 has 4 divisors (see below), whose sum is σ = 3780202722. Its totient is φ = 1260067572.

The previous prime is 2520135113. The next prime is 2520135193. The reversal of 2520135146 is 6415310252.

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., 2140080121 + 380055025 = 46261^2 + 19495^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630033785 + ... + 630033788.

Almost surely, 2^2520135146 is an apocalyptic number.

2520135146 is a deficient number, since it is larger than the sum of its proper divisors (1260067576).

2520135146 is a wasteful number, since it uses less digits than its factorization.

2520135146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260067575.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2520135146 is about 50200.9476603779. The cubic root of 2520135146 is about 1360.8427493652.

Adding to 2520135146 its reverse (6415310252), we get a palindrome (8935445398).

The spelling of 2520135146 in words is "two billion, five hundred twenty million, one hundred thirty-five thousand, one hundred forty-six".