1121425 has 12 divisors (see below), whose sum is σ = 1436416. Its totient is φ = 867600.

The previous prime is 1121423. The next prime is 1121431. The reversal of 1121425 is 5241211.

It is not a de Polignac number, because 1121425 - 2¹ = 1121423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121399 and 1121408.

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, 52 + ... + 1498.

2^1121425 is an apocalyptic number.

It is an amenable number.

1121425 is a deficient number, since it is larger than the sum of its proper divisors (314991).

1121425 is a wasteful number, since it uses less digits than its factorization.

1121425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488 (or 1483 counting only the distinct ones).

The product of its digits is 80, while the sum is 16.

The square root of 1121425 is about 1058.9735596322. The cubic root of 1121425 is about 103.8939068478.

Adding to 1121425 its reverse (5241211), we get a palindrome (6362636).

The spelling of 1121425 in words is "one million, one hundred twenty-one thousand, four hundred twenty-five".