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145280867 is a prime number
BaseRepresentation
bin10001010100011…
…00111101100011
3101010101000212212
420222030331203
5244142441432
622225512335
73412603244
oct1052147543
9333330785
10145280867
1175009736
12407a26ab
1324138c14
141541accb
15cb4b2b2
hex8a8cf63

145280867 has 2 divisors, whose sum is σ = 145280868. Its totient is φ = 145280866.

The previous prime is 145280803. The next prime is 145280869. The reversal of 145280867 is 768082541.

145280867 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 an emirp because it is prime and its reverse (768082541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145280867 - 26 = 145280803 is a prime.

It is a super-2 number, since 2×1452808672 = 42213060632543378, which contains 22 as substring.

Together with 145280869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145280869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72640433 + 72640434.

It is an arithmetic number, because the mean of its divisors is an integer number (72640434).

Almost surely, 2145280867 is an apocalyptic number.

145280867 is a deficient number, since it is larger than the sum of its proper divisors (1).

145280867 is an equidigital number, since it uses as much as digits as its factorization.

145280867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 145280867 is about 12053.2513041088. The cubic root of 145280867 is about 525.6977775395.

The spelling of 145280867 in words is "one hundred forty-five million, two hundred eighty thousand, eight hundred sixty-seven".