1145451105 has 32 divisors (see below), whose sum is σ = 2074792320. Its totient is φ = 599376960.

The previous prime is 1145451101. The next prime is 1145451121. The reversal of 1145451105 is 5011545411.

1145451105 is a `hidden beast` number, since 1 + 1 + 4 + 545 + 110 + 5 = 666.

It is not a de Polignac number, because 1145451105 - 2² = 1145451101 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 (1145451101) 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 31 ways as a sum of consecutive naturals, for example, 72891 + ... + 87200.

It is an arithmetic number, because the mean of its divisors is an integer number (64837260).

Almost surely, 2^1145451105 is an apocalyptic number.

1145451105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145451105 is a deficient number, since it is larger than the sum of its proper divisors (929341215).

1145451105 is a wasteful number, since it uses less digits than its factorization.

1145451105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160158 (or 160152 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 1145451105 is about 33844.5136617444. The cubic root of 1145451105 is about 1046.3063278213.

Adding to 1145451105 its reverse (5011545411), we get a palindrome (6156996516).

The spelling of 1145451105 in words is "one billion, one hundred forty-five million, four hundred fifty-one thousand, one hundred five".