1100404125 has 48 divisors (see below), whose sum is σ = 2032129008. Its totient is φ = 572544000.

The previous prime is 1100404069. The next prime is 1100404153. The reversal of 1100404125 is 5214040011.

It can be written as a sum of positive squares in 8 ways, for example, as 929396196 + 171007929 = 30486^2 + 13077^2 .

It is not a de Polignac number, because 1100404125 - 2²⁰ = 1099355549 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1100404098 and 1100404107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34197 + ... + 58053.

It is an arithmetic number, because the mean of its divisors is an integer number (42336021).

Almost surely, 2^1100404125 is an apocalyptic number.

1100404125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100404125 is a deficient number, since it is larger than the sum of its proper divisors (931724883).

1100404125 is a wasteful number, since it uses less digits than its factorization.

1100404125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23919 (or 23906 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1100404125 is about 33172.3397576957. The cubic root of 1100404125 is about 1032.4065151911.

Adding to 1100404125 its reverse (5214040011), we get a palindrome (6314444136).

The spelling of 1100404125 in words is "one billion, one hundred million, four hundred four thousand, one hundred twenty-five".