130399 has 2 divisors, whose sum is σ = 130400. Its totient is φ = 130398.
The previous prime is 130379. The next prime is 130409. The reversal of 130399 is 993031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130399 - 25 = 130367 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130349) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65199 + 65200.
It is an arithmetic number, because the mean of its divisors is an integer number (65200).
2130399 is an apocalyptic number.
130399 is a deficient number, since it is larger than the sum of its proper divisors (1).
130399 is an equidigital number, since it uses as much as digits as its factorization.
130399 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 729, while the sum is 25.
The square root of 130399 is about 361.1080170808. The cubic root of 130399 is about 50.7097442585.
It can be divided in two parts, 130 and 399, that added together give a square (529 = 232).
The spelling of 130399 in words is "one hundred thirty thousand, three hundred ninety-nine".
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