1125362665 has 12 divisors (see below), whose sum is σ = 1570914756. Its totient is φ = 771677088.

The previous prime is 1125362627. The next prime is 1125362677. The reversal of 1125362665 is 5662635211.

It can be written as a sum of positive squares in 2 ways, for example, as 776569689 + 348792976 = 27867^2 + 18676^2 .

It is not a de Polignac number, because 1125362665 - 2¹⁵ = 1125329897 is a prime.

It is a super-2 number, since 2×1125362665² = 2532882255551804450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2296414 + ... + 2296903.

It is an arithmetic number, because the mean of its divisors is an integer number (130909563).

Almost surely, 2^1125362665 is an apocalyptic number.

It is an amenable number.

1125362665 is a deficient number, since it is larger than the sum of its proper divisors (445552091).

1125362665 is an equidigital number, since it uses as much as digits as its factorization.

1125362665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593336 (or 4593329 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 1125362665 is about 33546.4255174825. The cubic root of 1125362665 is about 1040.1536585707.

Adding to 1125362665 its reverse (5662635211), we get a palindrome (6787997876).

The spelling of 1125362665 in words is "one billion, one hundred twenty-five million, three hundred sixty-two thousand, six hundred sixty-five".