1120155573 has 4 divisors (see below), whose sum is σ = 1493540768. Its totient is φ = 746770380.

The previous prime is 1120155571. The next prime is 1120155607. The reversal of 1120155573 is 3755510211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3755510211 = 3 ⋅1251836737.

It is not a de Polignac number, because 1120155573 - 2¹ = 1120155571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1120155573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120155571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186692593 + ... + 186692598.

It is an arithmetic number, because the mean of its divisors is an integer number (373385192).

Almost surely, 2^1120155573 is an apocalyptic number.

It is an amenable number.

1120155573 is a deficient number, since it is larger than the sum of its proper divisors (373385195).

1120155573 is an equidigital number, since it uses as much as digits as its factorization.

1120155573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373385194.

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 1120155573 is about 33468.7252969097. The cubic root of 1120155573 is about 1038.5469021848.

Adding to 1120155573 its reverse (3755510211), we get a palindrome (4875665784).

The spelling of 1120155573 in words is "one billion, one hundred twenty million, one hundred fifty-five thousand, five hundred seventy-three".