1150721025 has 24 divisors (see below), whose sum is σ = 1908642720. Its totient is φ = 611744640.

The previous prime is 1150721021. The next prime is 1150721051. The reversal of 1150721025 is 5201270511.

It is not a de Polignac number, because 1150721025 - 2² = 1150721021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1150720986 and 1150721004.

It is not an unprimeable number, because it can be changed into a prime (1150721021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1035 + ... + 47984.

It is an arithmetic number, because the mean of its divisors is an integer number (79526780).

Almost surely, 2^1150721025 is an apocalyptic number.

1150721025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1150721025 is a deficient number, since it is larger than the sum of its proper divisors (757921695).

1150721025 is a wasteful number, since it uses less digits than its factorization.

1150721025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49345 (or 49340 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 1150721025 is about 33922.2791834511. The cubic root of 1150721025 is about 1047.9084669513.

Adding to 1150721025 its reverse (5201270511), we get a palindrome (6351991536).

The spelling of 1150721025 in words is "one billion, one hundred fifty million, seven hundred twenty-one thousand, twenty-five".