51143041 has 4 divisors (see below), whose sum is σ = 53834800. Its totient is φ = 48451284.

The previous prime is 51143033. The next prime is 51143047. The reversal of 51143041 is 14034115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51143041 - 2³ = 51143033 is a prime.

It is a super-2 number, since 2×51143041² = 5231221285455362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 2691739 = 51143041 / (5 + 1 + 1 + 4 + 3 + 0 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51143047) 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, 1345851 + ... + 1345888.

It is an arithmetic number, because the mean of its divisors is an integer number (13458700).

Almost surely, 2^51143041 is an apocalyptic number.

It is an amenable number.

51143041 is a deficient number, since it is larger than the sum of its proper divisors (2691759).

51143041 is a wasteful number, since it uses less digits than its factorization.

51143041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691758.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51143041 is about 7151.4362893058. The cubic root of 51143041 is about 371.1893575441.

Adding to 51143041 its reverse (14034115), we get a palindrome (65177156).

The spelling of 51143041 in words is "fifty-one million, one hundred forty-three thousand, forty-one".