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144937 = 1311149
BaseRepresentation
bin100011011000101001
321100211001
4203120221
514114222
63035001
71142362
oct433051
9240731
10144937
1199991
126ba61
1350c80
143ab69
152ce27
hex23629

144937 has 4 divisors (see below), whose sum is σ = 156100. Its totient is φ = 133776.

The previous prime is 144931. The next prime is 144941. The reversal of 144937 is 739441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 739441 = 2293229.

It can be written as a sum of positive squares in 2 ways, for example, as 32041 + 112896 = 179^2 + 336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144937 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (144931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5562 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (39025).

2144937 is an apocalyptic number.

It is an amenable number.

144937 is a deficient number, since it is larger than the sum of its proper divisors (11163).

144937 is a wasteful number, since it uses less digits than its factorization.

144937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11162.

The product of its digits is 3024, while the sum is 28.

The square root of 144937 is about 380.7059232531. The cubic root of 144937 is about 52.5282689782.

It can be divided in two parts, 144 and 937, that added together give a triangular number (1081 = T46).

The spelling of 144937 in words is "one hundred forty-four thousand, nine hundred thirty-seven".

Divisors: 1 13 11149 144937