51146698 has 8 divisors (see below), whose sum is σ = 77582340. Its totient is φ = 25285920.

The previous prime is 51146671. The next prime is 51146699. The reversal of 51146698 is 89664115.

It can be written as a sum of positive squares in 2 ways, for example, as 45657049 + 5489649 = 6757^2 + 2343^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 51146698.

It is not an unprimeable number, because it can be changed into a prime (51146699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143493 + ... + 143848.

Almost surely, 2^51146698 is an apocalyptic number.

51146698 is a deficient number, since it is larger than the sum of its proper divisors (26435642).

51146698 is a wasteful number, since it uses less digits than its factorization.

51146698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287432.

The product of its digits is 51840, while the sum is 40.

The square root of 51146698 is about 7151.6919676395. The cubic root of 51146698 is about 371.1982046723.

The spelling of 51146698 in words is "fifty-one million, one hundred forty-six thousand, six hundred ninety-eight".