1118146345 has 4 divisors (see below), whose sum is σ = 1341775620. Its totient is φ = 894517072.

The previous prime is 1118146343. The next prime is 1118146349. The reversal of 1118146345 is 5436418111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478865689 + 639280656 = 21883^2 + 25284^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118146345 - 2¹ = 1118146343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118146345.

It is not an unprimeable number, because it can be changed into a prime (1118146343) 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, 111814630 + ... + 111814639.

It is an arithmetic number, because the mean of its divisors is an integer number (335443905).

Almost surely, 2^1118146345 is an apocalyptic number.

It is an amenable number.

1118146345 is a deficient number, since it is larger than the sum of its proper divisors (223629275).

1118146345 is an equidigital number, since it uses as much as digits as its factorization.

1118146345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223629274.

The product of its digits is 11520, while the sum is 34.

The square root of 1118146345 is about 33438.6953244292. The cubic root of 1118146345 is about 1037.9255818260.

The spelling of 1118146345 in words is "one billion, one hundred eighteen million, one hundred forty-six thousand, three hundred forty-five".