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12124901 is a prime number
BaseRepresentation
bin101110010000…
…001011100101
3211211000020102
4232100023211
511100444101
61111513445
7205026365
oct56201345
924730212
1012124901
116931688
124088885
132686ac9
1418789a5
1510e786b
hexb902e5

12124901 has 2 divisors, whose sum is σ = 12124902. Its totient is φ = 12124900.

The previous prime is 12124897. The next prime is 12124939. The reversal of 12124901 is 10942121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10857025 + 1267876 = 3295^2 + 1126^2 .

It is a cyclic number.

It is not a de Polignac number, because 12124901 - 22 = 12124897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12124991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6062450 + 6062451.

It is an arithmetic number, because the mean of its divisors is an integer number (6062451).

Almost surely, 212124901 is an apocalyptic number.

It is an amenable number.

12124901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12124901 is an equidigital number, since it uses as much as digits as its factorization.

12124901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12124901 is about 3482.0828536955. The cubic root of 12124901 is about 229.7344193504.

The spelling of 12124901 in words is "twelve million, one hundred twenty-four thousand, nine hundred one".