250141981 has 2 divisors, whose sum is σ = 250141982. Its totient is φ = 250141980.

The previous prime is 250141979. The next prime is 250142003. The reversal of 250141981 is 189141052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243204025 + 6937956 = 15595^2 + 2634^2 .

It is a cyclic number.

It is not a de Polignac number, because 250141981 - 2¹ = 250141979 is a prime.

It is a super-2 number, since 2×250141981² = 125142021317208722, which contains 22 as substring.

Together with 250141979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250141901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125070990 + 125070991.

It is an arithmetic number, because the mean of its divisors is an integer number (125070991).

Almost surely, 2^250141981 is an apocalyptic number.

It is an amenable number.

250141981 is a deficient number, since it is larger than the sum of its proper divisors (1).

250141981 is an equidigital number, since it uses as much as digits as its factorization.

250141981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 250141981 is about 15815.8774969965. The cubic root of 250141981 is about 630.0797589454.

The spelling of 250141981 in words is "two hundred fifty million, one hundred forty-one thousand, nine hundred eighty-one".