51141243 has 4 divisors (see below), whose sum is σ = 68188328. Its totient is φ = 34094160.

The previous prime is 51141199. The next prime is 51141247. The reversal of 51141243 is 34214115.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51141243 - 2⁸ = 51140987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51141247) 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, 8523538 + ... + 8523543.

It is an arithmetic number, because the mean of its divisors is an integer number (17047082).

Almost surely, 2^51141243 is an apocalyptic number.

51141243 is a deficient number, since it is larger than the sum of its proper divisors (17047085).

51141243 is a wasteful number, since it uses less digits than its factorization.

51141243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17047084.

The product of its digits is 480, while the sum is 21.

The square root of 51141243 is about 7151.3105791876. The cubic root of 51141243 is about 371.1850076118.

Adding to 51141243 its reverse (34214115), we get a palindrome (85355358).

The spelling of 51141243 in words is "fifty-one million, one hundred forty-one thousand, two hundred forty-three".