1153759645 has 4 divisors (see below), whose sum is σ = 1384511580. Its totient is φ = 923007712.

The previous prime is 1153759601. The next prime is 1153759661. The reversal of 1153759645 is 5469573511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5469573511 = 4507 ⋅1213573.

It can be written as a sum of positive squares in 2 ways, for example, as 556299396 + 597460249 = 23586^2 + 24443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153759645 - 2⁷ = 1153759517 is a prime.

It is a super-2 number, since 2×1153759645² = 2662322636861052050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1153759595 and 1153759604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115375960 + ... + 115375969.

It is an arithmetic number, because the mean of its divisors is an integer number (346127895).

Almost surely, 2^1153759645 is an apocalyptic number.

It is an amenable number.

1153759645 is a deficient number, since it is larger than the sum of its proper divisors (230751935).

1153759645 is an equidigital number, since it uses as much as digits as its factorization.

1153759645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230751934.

The product of its digits is 567000, while the sum is 46.

The square root of 1153759645 is about 33967.0376247326. The cubic root of 1153759645 is about 1048.8300332007.

The spelling of 1153759645 in words is "one billion, one hundred fifty-three million, seven hundred fifty-nine thousand, six hundred forty-five".