1145412225 has 48 divisors (see below), whose sum is σ = 2107573440. Its totient is φ = 609897600.

The previous prime is 1145412197. The next prime is 1145412227. The reversal of 1145412225 is 5222145411.

It is a happy number.

1145412225 is a `hidden beast` number, since 114 + 541 + 2 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 1145412225 - 2¹⁵ = 1145379457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1145412227) 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 47 ways as a sum of consecutive naturals, for example, 631570 + ... + 633380.

It is an arithmetic number, because the mean of its divisors is an integer number (43907780).

Almost surely, 2^1145412225 is an apocalyptic number.

1145412225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145412225 is a deficient number, since it is larger than the sum of its proper divisors (962161215).

1145412225 is a wasteful number, since it uses less digits than its factorization.

1145412225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767 (or 2756 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1145412225 is about 33843.9392653988. The cubic root of 1145412225 is about 1046.2944894431.

Adding to 1145412225 its reverse (5222145411), we get a palindrome (6367557636).

The spelling of 1145412225 in words is "one billion, one hundred forty-five million, four hundred twelve thousand, two hundred twenty-five".