Search a number
-
+
1422101269 is a prime number
BaseRepresentation
bin101010011000011…
…1000101100010101
310200002221020012101
41110300320230111
510403024220034
6353040322101
750145442561
oct12460705425
93602836171
101422101269
1166a814806
12338313331
13198819454
14d6c266a1
1584cad514
hex54c38b15

1422101269 has 2 divisors, whose sum is σ = 1422101270. Its totient is φ = 1422101268.

The previous prime is 1422101251. The next prime is 1422101279. The reversal of 1422101269 is 9621012241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820135044 + 601966225 = 28638^2 + 24535^2 .

It is an emirp because it is prime and its reverse (9621012241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1422101269 - 211 = 1422099221 is a prime.

It is a super-2 number, since 2×14221012692 = 4044744038582820722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1422101279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711050634 + 711050635.

It is an arithmetic number, because the mean of its divisors is an integer number (711050635).

Almost surely, 21422101269 is an apocalyptic number.

It is an amenable number.

1422101269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422101269 is an equidigital number, since it uses as much as digits as its factorization.

1422101269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1422101269 is about 37710.7580008676. The cubic root of 1422101269 is about 1124.5450061969.

The spelling of 1422101269 in words is "one billion, four hundred twenty-two million, one hundred one thousand, two hundred sixty-nine".