1123052645 has 32 divisors (see below), whose sum is σ = 1587890304. Its totient is φ = 751737600.

The previous prime is 1123052603. The next prime is 1123052683. The reversal of 1123052645 is 5462503211.

It is not a de Polignac number, because 1123052645 - 2²² = 1118858341 is a prime.

It is a super-2 number, since 2×1123052645² = 2522494486882992050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264590 + ... + 268800.

It is an arithmetic number, because the mean of its divisors is an integer number (49621572).

Almost surely, 2^1123052645 is an apocalyptic number.

It is an amenable number.

1123052645 is a deficient number, since it is larger than the sum of its proper divisors (464837659).

1123052645 is a wasteful number, since it uses less digits than its factorization.

1123052645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1123052645 is about 33511.9776348696. The cubic root of 1123052645 is about 1039.4414669199.

Adding to 1123052645 its reverse (5462503211), we get a palindrome (6585555856).

The spelling of 1123052645 in words is "one billion, one hundred twenty-three million, fifty-two thousand, six hundred forty-five".