251041141 has 8 divisors (see below), whose sum is σ = 273140504. Its totient is φ = 229340160.

The previous prime is 251041117. The next prime is 251041151. The reversal of 251041141 is 141140152.

It can be written as a sum of positive squares in 4 ways, for example, as 11874916 + 239166225 = 3446^2 + 15465^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 251041141 - 2⁷ = 251041013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251041151) 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, 98280 + ... + 100801.

It is an arithmetic number, because the mean of its divisors is an integer number (34142563).

Almost surely, 2^251041141 is an apocalyptic number.

It is an amenable number.

251041141 is a deficient number, since it is larger than the sum of its proper divisors (22099363).

251041141 is a wasteful number, since it uses less digits than its factorization.

251041141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199191.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 251041141 is about 15844.2778630015. The cubic root of 251041141 is about 630.8338174141.

Adding to 251041141 its reverse (141140152), we get a palindrome (392181293).

The spelling of 251041141 in words is "two hundred fifty-one million, forty-one thousand, one hundred forty-one".