1145450555 has 16 divisors (see below), whose sum is σ = 1455014880. Its totient is φ = 864181248.

The previous prime is 1145450543. The next prime is 1145450557. The reversal of 1145450555 is 5550545411.

It is a cyclic number.

It is not a de Polignac number, because 1145450555 - 2⁴ = 1145450539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145450557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85622 + ... + 98091.

It is an arithmetic number, because the mean of its divisors is an integer number (90938430).

Almost surely, 2^1145450555 is an apocalyptic number.

1145450555 is a deficient number, since it is larger than the sum of its proper divisors (309564325).

1145450555 is a wasteful number, since it uses less digits than its factorization.

1145450555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183790.

The product of its (nonzero) digits is 50000, while the sum is 35.

The square root of 1145450555 is about 33844.5055363496. The cubic root of 1145450555 is about 1046.3061603564.

Adding to 1145450555 its reverse (5550545411), we get a palindrome (6695995966).

The spelling of 1145450555 in words is "one billion, one hundred forty-five million, four hundred fifty thousand, five hundred fifty-five".