1145160225 has 72 divisors (see below), whose sum is σ = 2334975552. Its totient is φ = 531062400.

The previous prime is 1145160199. The next prime is 1145160227. The reversal of 1145160225 is 5220615411.

1145160225 is a `hidden beast` number, since 1 + 1 + 4 + 51 + 602 + 2 + 5 = 666.

It is not a de Polignac number, because 1145160225 - 2¹⁷ = 1145029153 is a prime.

It is a super-2 number, since 2×1145160225² = 2622783881844101250, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1145160227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 46867 + ... + 66983.

It is an arithmetic number, because the mean of its divisors is an integer number (32430216).

Almost surely, 2^1145160225 is an apocalyptic number.

1145160225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145160225 is an abundant number, since it is smaller than the sum of its proper divisors (1189815327).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145160225 is a wasteful number, since it uses less digits than its factorization.

1145160225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20167 (or 20159 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1145160225 is about 33840.2160897356. The cubic root of 1145160225 is about 1046.2177527177.

Adding to 1145160225 its reverse (5220615411), we get a palindrome (6365775636).

The spelling of 1145160225 in words is "one billion, one hundred forty-five million, one hundred sixty thousand, two hundred twenty-five".