1121634425 has 6 divisors (see below), whose sum is σ = 1390826718. Its totient is φ = 897307520.

The previous prime is 1121634359. The next prime is 1121634439. The reversal of 1121634425 is 5244361211.

It can be written as a sum of positive squares in 3 ways, for example, as 4804864 + 1116829561 = 2192^2 + 33419^2 .

It is not a de Polignac number, because 1121634425 - 2²⁴ = 1104857209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22432664 + ... + 22432713.

It is an arithmetic number, because the mean of its divisors is an integer number (231804453).

Almost surely, 2^1121634425 is an apocalyptic number.

It is an amenable number.

1121634425 is a deficient number, since it is larger than the sum of its proper divisors (269192293).

1121634425 is an equidigital number, since it uses as much as digits as its factorization.

1121634425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44865387 (or 44865382 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1121634425 is about 33490.8110531829. The cubic root of 1121634425 is about 1039.0037380642.

Adding to 1121634425 its reverse (5244361211), we get a palindrome (6365995636).

The spelling of 1121634425 in words is "one billion, one hundred twenty-one million, six hundred thirty-four thousand, four hundred twenty-five".