53128136 has 16 divisors (see below), whose sum is σ = 99730140. Its totient is φ = 26533440.

The previous prime is 53128109. The next prime is 53128139. The reversal of 53128136 is 63182135.

53128136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42172036 + 10956100 = 6494^2 + 3310^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53128099 and 53128108.

It is not an unprimeable number, because it can be changed into a prime (53128139) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4646 + ... + 11306.

Almost surely, 2^53128136 is an apocalyptic number.

It is an amenable number.

53128136 is a deficient number, since it is larger than the sum of its proper divisors (46602004).

53128136 is a wasteful number, since it uses less digits than its factorization.

53128136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664 (or 7660 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 53128136 is about 7288.9049932071. The cubic root of 53128136 is about 375.9310459037.

The spelling of 53128136 in words is "fifty-three million, one hundred twenty-eight thousand, one hundred thirty-six".