140551 has 2 divisors, whose sum is σ = 140552. Its totient is φ = 140550.
The previous prime is 140549. The next prime is 140557. The reversal of 140551 is 155041.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 140551 - 21 = 140549 is a prime.
Together with 140549, it forms a pair of twin primes.
It is a nialpdrome in base 11.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (140557) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70275 + 70276.
It is an arithmetic number, because the mean of its divisors is an integer number (70276).
2140551 is an apocalyptic number.
140551 is a deficient number, since it is larger than the sum of its proper divisors (1).
140551 is an equidigital number, since it uses as much as digits as its factorization.
140551 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 100, while the sum is 16.
The square root of 140551 is about 374.9013203498. The cubic root of 140551 is about 51.9929724231.
Adding to 140551 its reverse (155041), we get a palindrome (295592).
The spelling of 140551 in words is "one hundred forty thousand, five hundred fifty-one".
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