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123122969 is a prime number
BaseRepresentation
bin1110101011010…
…11010100011001
322120200021221222
413111223110121
5223004413334
620114541425
73023346044
oct725532431
9276607858
10123122969
1163555122
1235297875
131c67b538
14124cdc5b
15ac20d2e
hex756b519

123122969 has 2 divisors, whose sum is σ = 123122970. Its totient is φ = 123122968.

The previous prime is 123122941. The next prime is 123122977. The reversal of 123122969 is 969221321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95160025 + 27962944 = 9755^2 + 5288^2 .

It is an emirp because it is prime and its reverse (969221321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123122969 is a prime.

It is a super-2 number, since 2×1231229692 = 30318530990749922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123122929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561484 + 61561485.

It is an arithmetic number, because the mean of its divisors is an integer number (61561485).

Almost surely, 2123122969 is an apocalyptic number.

It is an amenable number.

123122969 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122969 is an equidigital number, since it uses as much as digits as its factorization.

123122969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The square root of 123122969 is about 11096.0789921485. The cubic root of 123122969 is about 497.4846593420.

The spelling of 123122969 in words is "one hundred twenty-three million, one hundred twenty-two thousand, nine hundred sixty-nine".