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1912069 is a prime number
BaseRepresentation
bin111010010110100000101
310121010212101
413102310011
5442141234
6104552101
722152355
oct7226405
93533771
101912069
111096625
12782631
1351c403
1437ab65
1527b814
hex1d2d05

1912069 has 2 divisors, whose sum is σ = 1912070. Its totient is φ = 1912068.

The previous prime is 1912067. The next prime is 1912087. The reversal of 1912069 is 9602191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 543169 = 1170^2 + 737^2 .

It is a cyclic number.

It is not a de Polignac number, because 1912069 - 21 = 1912067 is a prime.

It is a super-2 number, since 2×19120692 = 7312015721522, which contains 22 as substring.

Together with 1912067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1912061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956034 + 956035.

It is an arithmetic number, because the mean of its divisors is an integer number (956035).

21912069 is an apocalyptic number.

It is an amenable number.

1912069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912069 is an equidigital number, since it uses as much as digits as its factorization.

1912069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1912069 is about 1382.7758314347. The cubic root of 1912069 is about 124.1179289124.

The spelling of 1912069 in words is "one million, nine hundred twelve thousand, sixty-nine".