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331589 is a prime number
BaseRepresentation
bin1010000111101000101
3121211212002
41100331011
541102324
611035045
72550506
oct1207505
9554762
10331589
11207145
1213ba85
13b7c0b
1488bad
15683ae
hex50f45

331589 has 2 divisors, whose sum is σ = 331590. Its totient is φ = 331588.

The previous prime is 331579. The next prime is 331603. The reversal of 331589 is 985133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184900 + 146689 = 430^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 331589 - 28 = 331333 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 331589.

It is not a weakly prime, because it can be changed into another prime (331519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165794 + 165795.

It is an arithmetic number, because the mean of its divisors is an integer number (165795).

2331589 is an apocalyptic number.

It is an amenable number.

331589 is a deficient number, since it is larger than the sum of its proper divisors (1).

331589 is an equidigital number, since it uses as much as digits as its factorization.

331589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 331589 is about 575.8376507315. The cubic root of 331589 is about 69.2149705323.

The spelling of 331589 in words is "three hundred thirty-one thousand, five hundred eighty-nine".