1145503455 has 16 divisors (see below), whose sum is σ = 1835602560. Its totient is φ = 610002848.

The previous prime is 1145503453. The next prime is 1145503481. The reversal of 1145503455 is 5543055411.

It is a cyclic number.

It is not a de Polignac number, because 1145503455 - 2¹ = 1145503453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145503453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48057 + ... + 67826.

It is an arithmetic number, because the mean of its divisors is an integer number (114725160).

Almost surely, 2^1145503455 is an apocalyptic number.

1145503455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1145503455 is a deficient number, since it is larger than the sum of its proper divisors (690099105).

1145503455 is a wasteful number, since it uses less digits than its factorization.

1145503455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116550.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 1145503455 is about 33845.2870426593. The cubic root of 1145503455 is about 1046.3222671898.

Adding to 1145503455 its reverse (5543055411), we get a palindrome (6688558866).

The spelling of 1145503455 in words is "one billion, one hundred forty-five million, five hundred three thousand, four hundred fifty-five".