1152500645 has 4 divisors (see below), whose sum is σ = 1383000780. Its totient is φ = 922000512.

The previous prime is 1152500639. The next prime is 1152500647. The reversal of 1152500645 is 5460052511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5460052511 = 499 ⋅10941989.

It can be written as a sum of positive squares in 2 ways, for example, as 134699236 + 1017801409 = 11606^2 + 31903^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152500645 - 2¹² = 1152496549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152500647) 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, 115250060 + ... + 115250069.

It is an arithmetic number, because the mean of its divisors is an integer number (345750195).

Almost surely, 2^1152500645 is an apocalyptic number.

It is an amenable number.

1152500645 is a deficient number, since it is larger than the sum of its proper divisors (230500135).

1152500645 is an equidigital number, since it uses as much as digits as its factorization.

1152500645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230500134.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1152500645 is about 33948.4998932206. The cubic root of 1152500645 is about 1048.4483946109.

The spelling of 1152500645 in words is "one billion, one hundred fifty-two million, five hundred thousand, six hundred forty-five".