51144101 has 8 divisors (see below), whose sum is σ = 52884600. Its totient is φ = 49422528.

The previous prime is 51144073. The next prime is 51144127. The reversal of 51144101 is 10144115.

It can be written as a sum of positive squares in 4 ways, for example, as 15132100 + 36012001 = 3890^2 + 6001^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-51144101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51144101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51140101) 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, 875 + ... + 10151.

It is an arithmetic number, because the mean of its divisors is an integer number (6610575).

Almost surely, 2^51144101 is an apocalyptic number.

It is an amenable number.

51144101 is a deficient number, since it is larger than the sum of its proper divisors (1740499).

51144101 is a wasteful number, since it uses less digits than its factorization.

51144101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9463.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 51144101 is about 7151.5103999085. The cubic root of 51144101 is about 371.1919219725.

Adding to 51144101 its reverse (10144115), we get a palindrome (61288216).

The spelling of 51144101 in words is "fifty-one million, one hundred forty-four thousand, one hundred one".