2528121146 has 4 divisors (see below), whose sum is σ = 3792181722. Its totient is φ = 1264060572.

The previous prime is 2528121121. The next prime is 2528121157. The reversal of 2528121146 is 6411218252.

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., 2252926225 + 275194921 = 47465^2 + 16589^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632030285 + ... + 632030288.

Almost surely, 2^2528121146 is an apocalyptic number.

2528121146 is a deficient number, since it is larger than the sum of its proper divisors (1264060576).

2528121146 is a wasteful number, since it uses less digits than its factorization.

2528121146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264060575.

The product of its digits is 7680, while the sum is 32.

The square root of 2528121146 is about 50280.4250777576. The cubic root of 2528121146 is about 1362.2786817357.

Adding to 2528121146 its reverse (6411218252), we get a palindrome (8939339398).

The spelling of 2528121146 in words is "two billion, five hundred twenty-eight million, one hundred twenty-one thousand, one hundred forty-six".