1227445 has 8 divisors (see below), whose sum is σ = 1520640. Its totient is φ = 950160.

The previous prime is 1227437. The next prime is 1227463. The reversal of 1227445 is 5447221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1227445 - 2³ = 1227437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3805 + ... + 4114.

It is an arithmetic number, because the mean of its divisors is an integer number (190080).

2^1227445 is an apocalyptic number.

It is an amenable number.

1227445 is a deficient number, since it is larger than the sum of its proper divisors (293195).

1227445 is an equidigital number, since it uses as much as digits as its factorization.

1227445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955.

The product of its digits is 2240, while the sum is 25.

The square root of 1227445 is about 1107.9011688774. The cubic root of 1227445 is about 107.0698876700.

The spelling of 1227445 in words is "one million, two hundred twenty-seven thousand, four hundred forty-five".