1121425149 has 32 divisors (see below), whose sum is σ = 1626992640. Its totient is φ = 682979328.

The previous prime is 1121425133. The next prime is 1121425171. The reversal of 1121425149 is 9415241211.

It is not a de Polignac number, because 1121425149 - 2⁴ = 1121425133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121425549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2882647 + ... + 2883035.

It is an arithmetic number, because the mean of its divisors is an integer number (50843520).

Almost surely, 2^1121425149 is an apocalyptic number.

It is an amenable number.

1121425149 is a deficient number, since it is larger than the sum of its proper divisors (505567491).

1121425149 is a wasteful number, since it uses less digits than its factorization.

1121425149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981.

The product of its digits is 2880, while the sum is 30.

The square root of 1121425149 is about 33487.6865280359. The cubic root of 1121425149 is about 1038.9391144916.

It can be divided in two parts, 11214 and 25149, that added together give a palindrome (36363).

The spelling of 1121425149 in words is "one billion, one hundred twenty-one million, four hundred twenty-five thousand, one hundred forty-nine".