1100143245 has 16 divisors (see below), whose sum is σ = 1836761472. Its totient is φ = 561232320.

The previous prime is 1100143243. The next prime is 1100143259. The reversal of 1100143245 is 5423410011.

It is not a de Polignac number, because 1100143245 - 2¹ = 1100143243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100143243) 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, 1594066 + ... + 1594755.

It is an arithmetic number, because the mean of its divisors is an integer number (114797592).

Almost surely, 2^1100143245 is an apocalyptic number.

1100143245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100143245 is a deficient number, since it is larger than the sum of its proper divisors (736618227).

1100143245 is a wasteful number, since it uses less digits than its factorization.

1100143245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188852.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1100143245 is about 33168.4073328823. The cubic root of 1100143245 is about 1032.3249222888.

Adding to 1100143245 its reverse (5423410011), we get a palindrome (6523553256).

The spelling of 1100143245 in words is "one billion, one hundred million, one hundred forty-three thousand, two hundred forty-five".