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132121109 is a prime number
BaseRepresentation
bin1111110000000…
…00001000010101
3100012121110002102
413320000020111
5232310333414
621035451445
73163003511
oct770001025
9305543072
10132121109
11686405aa
12382b6b85
13214ac093
1413793141
15b8ebede
hex7e00215

132121109 has 2 divisors, whose sum is σ = 132121110. Its totient is φ = 132121108.

The previous prime is 132121091. The next prime is 132121159. The reversal of 132121109 is 901121231.

Together with previous prime (132121091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127803025 + 4318084 = 11305^2 + 2078^2 .

It is an emirp because it is prime and its reverse (901121231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-132121109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132121159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66060554 + 66060555.

It is an arithmetic number, because the mean of its divisors is an integer number (66060555).

Almost surely, 2132121109 is an apocalyptic number.

It is an amenable number.

132121109 is a deficient number, since it is larger than the sum of its proper divisors (1).

132121109 is an equidigital number, since it uses as much as digits as its factorization.

132121109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 132121109 is about 11494.3946774069. The cubic root of 132121109 is about 509.3200075074.

The spelling of 132121109 in words is "one hundred thirty-two million, one hundred twenty-one thousand, one hundred nine".