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BaseRepresentation
bin100101010101011101001
32022011012011
410222223221
5303122101
642115521
713253524
oct4525351
92264164
101223401
11766183
124abba1
1333ab0a
1423bbbb
15192751
hex12aae9

1223401 has 4 divisors (see below), whose sum is σ = 1240704. Its totient is φ = 1206100.

The previous prime is 1223381. The next prime is 1223419. The reversal of 1223401 is 1043221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1223401 - 29 = 1222889 is a prime.

It is a Duffinian number.

1223401 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1223471) 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, 8545 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (310176).

21223401 is an apocalyptic number.

It is an amenable number.

1223401 is a deficient number, since it is larger than the sum of its proper divisors (17303).

1223401 is an equidigital number, since it uses as much as digits as its factorization.

1223401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17302.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1223401 is about 1106.0745906131. The cubic root of 1223401 is about 106.9521724118.

Adding to 1223401 its reverse (1043221), we get a palindrome (2266622).

The spelling of 1223401 in words is "one million, two hundred twenty-three thousand, four hundred one".

Divisors: 1 71 17231 1223401