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123147373 is a prime number
BaseRepresentation
bin1110101011100…
…01010001101101
322120201112102211
413111301101231
5223011203443
620115250421
73023510146
oct725612155
9276645384
10123147373
1163571498
12352a9a11
131c68968b
14124d8acd
15ac2819d
hex757146d

123147373 has 2 divisors, whose sum is σ = 123147374. Its totient is φ = 123147372.

The previous prime is 123147329. The next prime is 123147389. The reversal of 123147373 is 373741321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87946884 + 35200489 = 9378^2 + 5933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123147373 is a prime.

It is a super-2 number, since 2×1231473732 = 30330550953602258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123147173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61573686 + 61573687.

It is an arithmetic number, because the mean of its divisors is an integer number (61573687).

Almost surely, 2123147373 is an apocalyptic number.

It is an amenable number.

123147373 is a deficient number, since it is larger than the sum of its proper divisors (1).

123147373 is an equidigital number, since it uses as much as digits as its factorization.

123147373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 123147373 is about 11097.1786053934. The cubic root of 123147373 is about 497.5175257077.

Adding to 123147373 its reverse (373741321), we get a palindrome (496888694).

The spelling of 123147373 in words is "one hundred twenty-three million, one hundred forty-seven thousand, three hundred seventy-three".