1152021125 has 16 divisors (see below), whose sum is σ = 1500235776. Its totient is φ = 881544400.

The previous prime is 1152021121. The next prime is 1152021137. The reversal of 1152021125 is 5211202511.

It is not a de Polignac number, because 1152021125 - 2² = 1152021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1152021097 and 1152021106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152021121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197477 + ... + 203226.

It is an arithmetic number, because the mean of its divisors is an integer number (93764736).

Almost surely, 2^1152021125 is an apocalyptic number.

It is an amenable number.

1152021125 is a deficient number, since it is larger than the sum of its proper divisors (348214651).

1152021125 is an equidigital number, since it uses as much as digits as its factorization.

1152021125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400741 (or 400731 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1152021125 is about 33941.4366961683. The cubic root of 1152021125 is about 1048.3029654178.

Adding to 1152021125 its reverse (5211202511), we get a palindrome (6363223636).

It can be divided in two parts, 11520 and 21125, that multiplied together give a square (243360000 = 15600²).

The spelling of 1152021125 in words is "one billion, one hundred fifty-two million, twenty-one thousand, one hundred twenty-five".