1152503253 has 24 divisors (see below), whose sum is σ = 1922895936. Its totient is φ = 657398400.

The previous prime is 1152503237. The next prime is 1152503279. The reversal of 1152503253 is 3523052511.

It is a happy number.

1152503253 is a `hidden beast` number, since 1 + 152 + 503 + 2 + 5 + 3 = 666.

It is not a de Polignac number, because 1152503253 - 2⁴ = 1152503237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152503203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340713 + ... + 344078.

It is an arithmetic number, because the mean of its divisors is an integer number (80120664).

Almost surely, 2^1152503253 is an apocalyptic number.

It is an amenable number.

1152503253 is a deficient number, since it is larger than the sum of its proper divisors (770392683).

1152503253 is a wasteful number, since it uses less digits than its factorization.

1152503253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684825 (or 684822 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1152503253 is about 33948.5383043217. The cubic root of 1152503253 is about 1048.4491854569.

Adding to 1152503253 its reverse (3523052511), we get a palindrome (4675555764).

It can be divided in two parts, 1152 and 503253, that added together give a palindrome (504405).

The spelling of 1152503253 in words is "one billion, one hundred fifty-two million, five hundred three thousand, two hundred fifty-three".