1152975647 has 4 divisors (see below), whose sum is σ = 1156731576. Its totient is φ = 1149219720.

The previous prime is 1152975643. The next prime is 1152975661. The reversal of 1152975647 is 7465792511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7465792511 = 62017 ⋅120383.

It is a cyclic number.

It is not a de Polignac number, because 1152975647 - 2² = 1152975643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152975643) 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, 1877504 + ... + 1878117.

It is an arithmetic number, because the mean of its divisors is an integer number (289182894).

Almost surely, 2^1152975647 is an apocalyptic number.

1152975647 is a deficient number, since it is larger than the sum of its proper divisors (3755929).

1152975647 is an equidigital number, since it uses as much as digits as its factorization.

1152975647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755928.

The product of its digits is 529200, while the sum is 47.

The square root of 1152975647 is about 33955.4950928417. The cubic root of 1152975647 is about 1048.5924138163.

The spelling of 1152975647 in words is "one billion, one hundred fifty-two million, nine hundred seventy-five thousand, six hundred forty-seven".