1123362645 has 16 divisors (see below), whose sum is σ = 1800308160. Its totient is φ = 598150784.

The previous prime is 1123362629. The next prime is 1123362679. The reversal of 1123362645 is 5462633211.

It is a cyclic number.

It is not a de Polignac number, because 1123362645 - 2⁴ = 1123362629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51435 + ... + 69944.

It is an arithmetic number, because the mean of its divisors is an integer number (112519260).

Almost surely, 2^1123362645 is an apocalyptic number.

1123362645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123362645 is a deficient number, since it is larger than the sum of its proper divisors (676945515).

1123362645 is a wasteful number, since it uses less digits than its factorization.

1123362645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122004.

The product of its digits is 25920, while the sum is 33.

The square root of 1123362645 is about 33516.6025277026. The cubic root of 1123362645 is about 1039.5370982963.

Adding to 1123362645 its reverse (5462633211), we get a palindrome (6585995856).

The spelling of 1123362645 in words is "one billion, one hundred twenty-three million, three hundred sixty-two thousand, six hundred forty-five".