551320141 has 2 divisors, whose sum is σ = 551320142. Its totient is φ = 551320140.

The previous prime is 551320127. The next prime is 551320241. The reversal of 551320141 is 141023155.

It is a happy number.

551320141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297045225 + 254274916 = 17235^2 + 15946^2 .

It is a cyclic number.

It is not a de Polignac number, because 551320141 - 2¹⁹ = 550795853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551320111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275660070 + 275660071.

It is an arithmetic number, because the mean of its divisors is an integer number (275660071).

Almost surely, 2^551320141 is an apocalyptic number.

It is an amenable number.

551320141 is a deficient number, since it is larger than the sum of its proper divisors (1).

551320141 is an equidigital number, since it uses as much as digits as its factorization.

551320141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 551320141 is about 23480.2074309406. The cubic root of 551320141 is about 819.9762738525.

Adding to 551320141 its reverse (141023155), we get a palindrome (692343296).

The spelling of 551320141 in words is "five hundred fifty-one million, three hundred twenty thousand, one hundred forty-one".