1145432505 has 32 divisors (see below), whose sum is σ = 2095985664. Its totient is φ = 523256256.

The previous prime is 1145432503. The next prime is 1145432507. The reversal of 1145432505 is 5052345411.

It is an interprime number because it is at equal distance from previous prime (1145432503) and next prime (1145432507).

It is not a de Polignac number, because 1145432505 - 2¹ = 1145432503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1145432501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193114 + ... + 198956.

It is an arithmetic number, because the mean of its divisors is an integer number (65499552).

Almost surely, 2^1145432505 is an apocalyptic number.

1145432505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145432505 is a deficient number, since it is larger than the sum of its proper divisors (950553159).

1145432505 is a wasteful number, since it uses less digits than its factorization.

1145432505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1145432505 is about 33844.2388745854. The cubic root of 1145432505 is about 1046.3006644330.

Adding to 1145432505 its reverse (5052345411), we get a palindrome (6197777916).

The spelling of 1145432505 in words is "one billion, one hundred forty-five million, four hundred thirty-two thousand, five hundred five".