51130133 has 2 divisors, whose sum is σ = 51130134. Its totient is φ = 51130132.

The previous prime is 51130091. The next prime is 51130141. The reversal of 51130133 is 33103115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39853969 + 11276164 = 6313^2 + 3358^2 .

It is a cyclic number.

It is not a de Polignac number, because 51130133 - 2⁶ = 51130069 is a prime.

It is a super-2 number, since 2×51130133² = 5228581001195378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51130193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25565066 + 25565067.

It is an arithmetic number, because the mean of its divisors is an integer number (25565067).

Almost surely, 2^51130133 is an apocalyptic number.

It is an amenable number.

51130133 is a deficient number, since it is larger than the sum of its proper divisors (1).

51130133 is an equidigital number, since it uses as much as digits as its factorization.

51130133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 51130133 is about 7150.5337563010. The cubic root of 51130133 is about 371.1581267368.

Adding to 51130133 its reverse (33103115), we get a palindrome (84233248).

The spelling of 51130133 in words is "fifty-one million, one hundred thirty thousand, one hundred thirty-three".