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1914145801 is a prime number
BaseRepresentation
bin111001000010111…
…1000110000001001
311221101210200101221
41302011320300021
512410010131201
6513534442041
765301654001
oct16205706011
94841720357
101914145801
118a2538087
12455063321
13246747469
1414230b001
15b30a44a1
hex72178c09

1914145801 has 2 divisors, whose sum is σ = 1914145802. Its totient is φ = 1914145800.

The previous prime is 1914145789. The next prime is 1914145811. The reversal of 1914145801 is 1085414191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1804210576 + 109935225 = 42476^2 + 10485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1914145801 - 25 = 1914145769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1914145811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957072900 + 957072901.

It is an arithmetic number, because the mean of its divisors is an integer number (957072901).

Almost surely, 21914145801 is an apocalyptic number.

It is an amenable number.

1914145801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914145801 is an equidigital number, since it uses as much as digits as its factorization.

1914145801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 1914145801 is about 43750.9520010708. The cubic root of 1914145801 is about 1241.6284970585.

Adding to 1914145801 its reverse (1085414191), we get a palindrome (2999559992).

The spelling of 1914145801 in words is "one billion, nine hundred fourteen million, one hundred forty-five thousand, eight hundred one".