1145004550 has 12 divisors (see below), whose sum is σ = 2129708556. Its totient is φ = 458001800.

The previous prime is 1145004533. The next prime is 1145004551. The reversal of 1145004550 is 554005411.

It is a happy number.

It is a super-2 number, since 2×1145004550² = 2622070839041405000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145004551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11449996 + ... + 11450095.

It is an arithmetic number, because the mean of its divisors is an integer number (177475713).

Almost surely, 2^1145004550 is an apocalyptic number.

1145004550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145004550 is a deficient number, since it is larger than the sum of its proper divisors (984704006).

1145004550 is a wasteful number, since it uses less digits than its factorization.

1145004550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22900103 (or 22900098 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1145004550 is about 33837.9158637171. The cubic root of 1145004550 is about 1046.1703423711.

Adding to 1145004550 its reverse (554005411), we get a palindrome (1699009961).

The spelling of 1145004550 in words is "one billion, one hundred forty-five million, four thousand, five hundred fifty".