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22214947 is a prime number
BaseRepresentation
bin101010010111…
…1100100100011
31112210122011211
41110233210203
521141334242
62112050551
7356552416
oct124574443
945718154
1022214947
11115a3467
127533a57
1347aa651
142d43b7d
151e3c317
hex152f923

22214947 has 2 divisors, whose sum is σ = 22214948. Its totient is φ = 22214946.

The previous prime is 22214923. The next prime is 22214953. The reversal of 22214947 is 74941222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22214947 - 215 = 22182179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22214147) 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, 11107473 + 11107474.

It is an arithmetic number, because the mean of its divisors is an integer number (11107474).

Almost surely, 222214947 is an apocalyptic number.

22214947 is a deficient number, since it is larger than the sum of its proper divisors (1).

22214947 is an equidigital number, since it uses as much as digits as its factorization.

22214947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 22214947 is about 4713.2734908978. The cubic root of 22214947 is about 281.1135376181.

The spelling of 22214947 in words is "twenty-two million, two hundred fourteen thousand, nine hundred forty-seven".