1227601 has 4 divisors (see below), whose sum is σ = 1237104. Its totient is φ = 1218100.

The previous prime is 1227563. The next prime is 1227619. The reversal of 1227601 is 1067221.

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 a de Polignac number, because none of the positive numbers 2^k-1227601 is a prime.

It is a Duffinian number.

1227601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1227101) 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, 4555 + ... + 4816.

It is an arithmetic number, because the mean of its divisors is an integer number (309276).

2^1227601 is an apocalyptic number.

1227601 is the 496-th centered decagonal number.

It is an amenable number.

1227601 is a deficient number, since it is larger than the sum of its proper divisors (9503).

1227601 is an equidigital number, since it uses as much as digits as its factorization.

1227601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9502.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1227601 is about 1107.9715700324. The cubic root of 1227601 is about 107.0744234320.

The spelling of 1227601 in words is "one million, two hundred twenty-seven thousand, six hundred one".