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144918 = 2328397
BaseRepresentation
bin100011011000010110
321100210100
4203120112
514114133
63034530
71142334
oct433026
9240710
10144918
1199974
126ba46
1350c67
143ab54
152ce13
hex23616

144918 has 24 divisors (see below), whose sum is σ = 321048. Its totient is φ = 47232.

The previous prime is 144917. The next prime is 144931. The reversal of 144918 is 819441.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 144891 and 144900.

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 144918.

It is not an unprimeable number, because it can be changed into a prime (144917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1446 + ... + 1542.

It is an arithmetic number, because the mean of its divisors is an integer number (13377).

2144918 is an apocalyptic number.

144918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

144918 is an abundant number, since it is smaller than the sum of its proper divisors (176130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144918 is a wasteful number, since it uses less digits than its factorization.

144918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 185 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 144918 is about 380.6809687915. The cubic root of 144918 is about 52.5259735424.

Adding to 144918 its product of digits (1152), we get a triangular number (146070 = T540).

The spelling of 144918 in words is "one hundred forty-four thousand, nine hundred eighteen".

Divisors: 1 2 3 6 9 18 83 97 166 194 249 291 498 582 747 873 1494 1746 8051 16102 24153 48306 72459 144918