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1230122837 is a prime number
BaseRepresentation
bin100100101010010…
…0010111101010101
310011201200201022002
41021110202331111
510004402412322
6322021445045
742324604646
oct11124427525
93151621262
101230122837
11581410549
122a3b70785
13167b10348
14b95316cd
1572edac92
hex49522f55

1230122837 has 2 divisors, whose sum is σ = 1230122838. Its totient is φ = 1230122836.

The previous prime is 1230122827. The next prime is 1230122851. The reversal of 1230122837 is 7382210321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 895745041 + 334377796 = 29929^2 + 18286^2 .

It is an emirp because it is prime and its reverse (7382210321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230122837 - 210 = 1230121813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230122827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615061418 + 615061419.

It is an arithmetic number, because the mean of its divisors is an integer number (615061419).

Almost surely, 21230122837 is an apocalyptic number.

It is an amenable number.

1230122837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230122837 is an equidigital number, since it uses as much as digits as its factorization.

1230122837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1230122837 is about 35073.1070337374. The cubic root of 1230122837 is about 1071.4769358832.

The spelling of 1230122837 in words is "one billion, two hundred thirty million, one hundred twenty-two thousand, eight hundred thirty-seven".