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144022631 is a prime number
BaseRepresentation
bin10001001010110…
…01110001100111
3101001000002220112
420211121301213
5243332211011
622142523235
73366113024
oct1045316147
9331002815
10144022631
117432a375
124029651b
1323ab82bc
14151b054b
15c99d58b
hex8959c67

144022631 has 2 divisors, whose sum is σ = 144022632. Its totient is φ = 144022630.

The previous prime is 144022607. The next prime is 144022633. The reversal of 144022631 is 136220441.

144022631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144022631 is a prime.

It is a super-2 number, since 2×1440226312 = 41485036480324322, which contains 22 as substring.

Together with 144022633, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 144022597 and 144022606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144022633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72011315 + 72011316.

It is an arithmetic number, because the mean of its divisors is an integer number (72011316).

Almost surely, 2144022631 is an apocalyptic number.

144022631 is a deficient number, since it is larger than the sum of its proper divisors (1).

144022631 is an equidigital number, since it uses as much as digits as its factorization.

144022631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 144022631 is about 12000.9429212875. The cubic root of 144022631 is about 524.1757357361.

The spelling of 144022631 in words is "one hundred forty-four million, twenty-two thousand, six hundred thirty-one".