51145241 has 8 divisors (see below), whose sum is σ = 60467520. Its totient is φ = 42326928.

The previous prime is 51145229. The next prime is 51145249. The reversal of 51145241 is 14254115.

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-51145241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51145249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125771 + ... + 126176.

It is an arithmetic number, because the mean of its divisors is an integer number (7558440).

Almost surely, 2^51145241 is an apocalyptic number.

It is an amenable number.

51145241 is a deficient number, since it is larger than the sum of its proper divisors (9322279).

51145241 is a wasteful number, since it uses less digits than its factorization.

51145241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251983.

The product of its digits is 800, while the sum is 23.

The square root of 51145241 is about 7151.5901029072. The cubic root of 51145241 is about 371.1946799031.

Adding to 51145241 its reverse (14254115), we get a palindrome (65399356).

The spelling of 51145241 in words is "fifty-one million, one hundred forty-five thousand, two hundred forty-one".