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145343 = 1173181
BaseRepresentation
bin100011011110111111
321101101002
4203132333
514122333
63040515
71143512
oct433677
9241332
10145343
119a220
127013b
1351203
143ad79
152d0e8
hex237bf

145343 has 8 divisors (see below), whose sum is σ = 161616. Its totient is φ = 129600.

The previous prime is 145307. The next prime is 145349. The reversal of 145343 is 343541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145343 - 214 = 128959 is a prime.

It is a super-2 number, since 2×1453432 = 42249175298, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (20202).

2145343 is an apocalyptic number.

145343 is a deficient number, since it is larger than the sum of its proper divisors (16273).

145343 is a wasteful number, since it uses less digits than its factorization.

145343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its digits is 720, while the sum is 20.

The square root of 145343 is about 381.2387703264. The cubic root of 145343 is about 52.5772709464.

Adding to 145343 its reverse (343541), we get a palindrome (488884).

The spelling of 145343 in words is "one hundred forty-five thousand, three hundred forty-three".

Divisors: 1 11 73 181 803 1991 13213 145343