251043224141 has 4 divisors (see below), whose sum is σ = 252875656572. Its totient is φ = 249210791712.

The previous prime is 251043224093. The next prime is 251043224167. The reversal of 251043224141 is 141422340152.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 80346170116 + 170697054025 = 283454^2 + 413155^2 .

It is a cyclic number.

It is not a de Polignac number, because 251043224141 - 2¹⁰ = 251043223117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251043224441) 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, 916216010 + ... + 916216283.

It is an arithmetic number, because the mean of its divisors is an integer number (63218914143).

Almost surely, 2^251043224141 is an apocalyptic number.

It is an amenable number.

251043224141 is a deficient number, since it is larger than the sum of its proper divisors (1832432431).

251043224141 is a wasteful number, since it uses less digits than its factorization.

251043224141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832432430.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 251043224141 its reverse (141422340152), we get a palindrome (392465564293).

The spelling of 251043224141 in words is "two hundred fifty-one billion, forty-three million, two hundred twenty-four thousand, one hundred forty-one".