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1422001223 = 11069128467
BaseRepresentation
bin101010011000010…
…0000010001000111
310200002202010221222
41110300200101013
510403013014343
6353034230555
750144545106
oct12460402107
93602663858
101422001223
1166a756625
1233828545b
131987b2a56
14d6bdc03d
1584c8da68
hex54c20447

1422001223 has 4 divisors (see below), whose sum is σ = 1422140760. Its totient is φ = 1421861688.

The previous prime is 1422001213. The next prime is 1422001241. The reversal of 1422001223 is 3221002241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1422001223 - 212 = 1421997127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422001213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53165 + ... + 75302.

It is an arithmetic number, because the mean of its divisors is an integer number (355535190).

Almost surely, 21422001223 is an apocalyptic number.

1422001223 is a deficient number, since it is larger than the sum of its proper divisors (139537).

1422001223 is a wasteful number, since it uses less digits than its factorization.

1422001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139536.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1422001223 is about 37709.4314860354. The cubic root of 1422001223 is about 1124.5186346882.

Adding to 1422001223 its reverse (3221002241), we get a palindrome (4643003464).

The spelling of 1422001223 in words is "one billion, four hundred twenty-two million, one thousand, two hundred twenty-three".

Divisors: 1 11069 128467 1422001223