1121425156 has 12 divisors (see below), whose sum is σ = 2015534668. Its totient is φ = 545558112.

The previous prime is 1121425133. The next prime is 1121425171. The reversal of 1121425156 is 6515241211.

It can be written as a sum of positive squares in 2 ways, for example, as 1044582400 + 76842756 = 32320^2 + 8766^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3788451 + ... + 3788746.

Almost surely, 2^1121425156 is an apocalyptic number.

It is an amenable number.

1121425156 is a deficient number, since it is larger than the sum of its proper divisors (894109512).

1121425156 is a wasteful number, since it uses less digits than its factorization.

1121425156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577238 (or 7577236 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 1121425156 is about 33487.6866325520. The cubic root of 1121425156 is about 1038.9391166533.

Adding to 1121425156 its reverse (6515241211), we get a palindrome (7636666367).

The spelling of 1121425156 in words is "one billion, one hundred twenty-one million, four hundred twenty-five thousand, one hundred fifty-six".