1125602771 has 4 divisors (see below), whose sum is σ = 1125679200. Its totient is φ = 1125526344.

The previous prime is 1125602719. The next prime is 1125602851. The reversal of 1125602771 is 1772065211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1125602771 - 2⁶ = 1125602707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125602371) 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, 8336 + ... + 48173.

It is an arithmetic number, because the mean of its divisors is an integer number (281419800).

Almost surely, 2^1125602771 is an apocalyptic number.

1125602771 is a deficient number, since it is larger than the sum of its proper divisors (76429).

1125602771 is an equidigital number, since it uses as much as digits as its factorization.

1125602771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76428.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 1125602771 is about 33550.0040387479. The cubic root of 1125602771 is about 1040.2276286138.

Adding to 1125602771 its reverse (1772065211), we get a palindrome (2897667982).

The spelling of 1125602771 in words is "one billion, one hundred twenty-five million, six hundred two thousand, seven hundred seventy-one".