1151445225 has 48 divisors (see below), whose sum is σ = 2185252992. Its totient is φ = 524060160.

The previous prime is 1151445223. The next prime is 1151445233. The reversal of 1151445225 is 5225441511.

It is not a de Polignac number, because 1151445225 - 2¹ = 1151445223 is a prime.

It is a super-2 number, since 2×1151445225² = 2651652212350601250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1151445192 and 1151445201.

It is not an unprimeable number, because it can be changed into a prime (1151445223) 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 47 ways as a sum of consecutive naturals, for example, 117619 + ... + 127031.

It is an arithmetic number, because the mean of its divisors is an integer number (45526104).

Almost surely, 2^1151445225 is an apocalyptic number.

1151445225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151445225 is a deficient number, since it is larger than the sum of its proper divisors (1033807767).

1151445225 is a wasteful number, since it uses less digits than its factorization.

1151445225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9666 (or 9661 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 1151445225 is about 33932.9519051909. The cubic root of 1151445225 is about 1048.1282526766.

Adding to 1151445225 its reverse (5225441511), we get a palindrome (6376886736).

The spelling of 1151445225 in words is "one billion, one hundred fifty-one million, four hundred forty-five thousand, two hundred twenty-five".