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399137 is a prime number
BaseRepresentation
bin1100001011100100001
3202021111212
41201130201
5100233022
612315505
73251444
oct1413441
9667455
10399137
11252972
12172b95
1310c89b
14a565b
157d3e2
hex61721

399137 has 2 divisors, whose sum is σ = 399138. Its totient is φ = 399136.

The previous prime is 399131. The next prime is 399149. The reversal of 399137 is 731993.

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., 341056 + 58081 = 584^2 + 241^2 .

399137 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 399137 - 210 = 398113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (399131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199568 + 199569.

It is an arithmetic number, because the mean of its divisors is an integer number (199569).

2399137 is an apocalyptic number.

It is an amenable number.

399137 is a deficient number, since it is larger than the sum of its proper divisors (1).

399137 is an equidigital number, since it uses as much as digits as its factorization.

399137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5103, while the sum is 32.

The square root of 399137 is about 631.7729022362. The cubic root of 399137 is about 73.6276031663.

The spelling of 399137 in words is "three hundred ninety-nine thousand, one hundred thirty-seven".