51140133 has 32 divisors (see below), whose sum is σ = 83049600. Its totient is φ = 30844800.

The previous prime is 51140129. The next prime is 51140147. The reversal of 51140133 is 33104115.

It is not a de Polignac number, because 51140133 - 2² = 51140129 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51140123) 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 in 31 ways as a sum of consecutive naturals, for example, 121263 + ... + 121683.

It is an arithmetic number, because the mean of its divisors is an integer number (2595300).

Almost surely, 2^51140133 is an apocalyptic number.

It is an amenable number.

51140133 is a deficient number, since it is larger than the sum of its proper divisors (31909467).

51140133 is a wasteful number, since it uses less digits than its factorization.

51140133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 51140133 is about 7151.2329706142. The cubic root of 51140133 is about 371.1823221189.

Adding to 51140133 its reverse (33104115), we get a palindrome (84244248).

The spelling of 51140133 in words is "fifty-one million, one hundred forty thousand, one hundred thirty-three".