1121427 has 12 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 733200.

The previous prime is 1121423. The next prime is 1121431. The reversal of 1121427 is 7241211.

It is an interprime number because it is at equal distance from previous prime (1121423) and next prime (1121431).

It is not a de Polignac number, because 1121427 - 2² = 1121423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 699 + ... + 1652.

It is an arithmetic number, because the mean of its divisors is an integer number (137592).

2^1121427 is an apocalyptic number.

1121427 is a deficient number, since it is larger than the sum of its proper divisors (529677).

1121427 is a wasteful number, since it uses less digits than its factorization.

1121427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410 (or 2407 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1121427 is about 1058.9745039424. The cubic root of 1121427 is about 103.8939686108.

Adding to 1121427 its reverse (7241211), we get a palindrome (8362638).

The spelling of 1121427 in words is "one million, one hundred twenty-one thousand, four hundred twenty-seven".