51134665 has 8 divisors (see below), whose sum is σ = 62519688. Its totient is φ = 40135680.

The previous prime is 51134641. The next prime is 51134669. The reversal of 51134665 is 56643115.

It can be written as a sum of positive squares in 4 ways, for example, as 11532816 + 39601849 = 3396^2 + 6293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51134665 - 2⁷ = 51134537 is a prime.

It is a super-2 number, since 2×51134665² = 5229507929324450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51134669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96216 + ... + 96745.

It is an arithmetic number, because the mean of its divisors is an integer number (7814961).

Almost surely, 2^51134665 is an apocalyptic number.

It is an amenable number.

51134665 is a deficient number, since it is larger than the sum of its proper divisors (11385023).

51134665 is a wasteful number, since it uses less digits than its factorization.

51134665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193019.

The product of its digits is 10800, while the sum is 31.

The square root of 51134665 is about 7150.8506486991. The cubic root of 51134665 is about 371.1690924748.

The spelling of 51134665 in words is "fifty-one million, one hundred thirty-four thousand, six hundred sixty-five".