51116145 has 8 divisors (see below), whose sum is σ = 81785856. Its totient is φ = 27261936.

The previous prime is 51116113. The next prime is 51116159. The reversal of 51116145 is 54161115.

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

It is not a de Polignac number, because 51116145 - 2⁵ = 51116113 is a prime.

It is a super-2 number, since 2×51116145² = 5225720559322050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703857 + ... + 1703886.

It is an arithmetic number, because the mean of its divisors is an integer number (10223232).

Almost surely, 2^51116145 is an apocalyptic number.

It is an amenable number.

51116145 is a deficient number, since it is larger than the sum of its proper divisors (30669711).

51116145 is a wasteful number, since it uses less digits than its factorization.

51116145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407751.

The product of its digits is 600, while the sum is 24.

The square root of 51116145 is about 7149.5555805938. Note that the first 4 decimals coincide. The cubic root of 51116145 is about 371.1242769428.

The spelling of 51116145 in words is "fifty-one million, one hundred sixteen thousand, one hundred forty-five".