117541 has 2 divisors, whose sum is σ = 117542. Its totient is φ = 117540.
The previous prime is 117539. The next prime is 117563. The reversal of 117541 is 145711.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 73441 + 44100 = 271^2 + 210^2 .
It is a cyclic number.
It is not a de Polignac number, because 117541 - 21 = 117539 is a prime.
Together with 117539, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (117511) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58770 + 58771.
It is an arithmetic number, because the mean of its divisors is an integer number (58771).
2117541 is an apocalyptic number.
It is an amenable number.
117541 is a deficient number, since it is larger than the sum of its proper divisors (1).
117541 is an equidigital number, since it uses as much as digits as its factorization.
117541 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 140, while the sum is 19.
The square root of 117541 is about 342.8425294505. The cubic root of 117541 is about 48.9850016570.
The spelling of 117541 in words is "one hundred seventeen thousand, five hundred forty-one".
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