1115445373 has 4 divisors (see below), whose sum is σ = 1274794720. Its totient is φ = 956096028.

The previous prime is 1115445341. The next prime is 1115445377. The reversal of 1115445373 is 3735445111.

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.

It is a cyclic number.

It is not a de Polignac number, because 1115445373 - 2⁵ = 1115445341 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 (1115445377) 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, 79674663 + ... + 79674676.

It is an arithmetic number, because the mean of its divisors is an integer number (318698680).

Almost surely, 2^1115445373 is an apocalyptic number.

It is an amenable number.

1115445373 is a deficient number, since it is larger than the sum of its proper divisors (159349347).

1115445373 is an equidigital number, since it uses as much as digits as its factorization.

1115445373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159349346.

The product of its digits is 25200, while the sum is 34.

The square root of 1115445373 is about 33398.2839828636. The cubic root of 1115445373 is about 1037.0891772216.

The spelling of 1115445373 in words is "one billion, one hundred fifteen million, four hundred forty-five thousand, three hundred seventy-three".