1121535445 has 8 divisors (see below), whose sum is σ = 1365930144. Its totient is φ = 883836624.

The previous prime is 1121535413. The next prime is 1121535449. The reversal of 1121535445 is 5445351211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121535445 - 2⁵ = 1121535413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121535449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673599 + ... + 1674268.

It is an arithmetic number, because the mean of its divisors is an integer number (170741268).

Almost surely, 2^1121535445 is an apocalyptic number.

It is an amenable number.

1121535445 is a deficient number, since it is larger than the sum of its proper divisors (244394699).

1121535445 is an equidigital number, since it uses as much as digits as its factorization.

1121535445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347939.

The product of its digits is 12000, while the sum is 31.

The square root of 1121535445 is about 33489.3333018142. Note that the first 4 decimals coincide. The cubic root of 1121535445 is about 1038.9731744471.

Adding to 1121535445 its reverse (5445351211), we get a palindrome (6566886656).

The spelling of 1121535445 in words is "one billion, one hundred twenty-one million, five hundred thirty-five thousand, four hundred forty-five".