51134693 has 2 divisors, whose sum is σ = 51134694. Its totient is φ = 51134692.

The previous prime is 51134669. The next prime is 51134729. The reversal of 51134693 is 39643115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36747844 + 14386849 = 6062^2 + 3793^2 .

It is a cyclic number.

It is not a de Polignac number, because 51134693 - 2⁸ = 51134437 is a prime.

It is a super-2 number, since 2×51134693² = 5229513656408498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51131693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25567346 + 25567347.

It is an arithmetic number, because the mean of its divisors is an integer number (25567347).

Almost surely, 2^51134693 is an apocalyptic number.

It is an amenable number.

51134693 is a deficient number, since it is larger than the sum of its proper divisors (1).

51134693 is an equidigital number, since it uses as much as digits as its factorization.

51134693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 51134693 is about 7150.8526065078. The cubic root of 51134693 is about 371.1691602223.

The spelling of 51134693 in words is "fifty-one million, one hundred thirty-four thousand, six hundred ninety-three".