1100425 has 6 divisors (see below), whose sum is σ = 1364558. Its totient is φ = 880320.

The previous prime is 1100419. The next prime is 1100441. The reversal of 1100425 is 5240011.

It can be written as a sum of positive squares in 3 ways, for example, as 173056 + 927369 = 416^2 + 963^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1100425 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21984 + ... + 22033.

2^1100425 is an apocalyptic number.

It is an amenable number.

1100425 is a deficient number, since it is larger than the sum of its proper divisors (264133).

1100425 is an equidigital number, since it uses as much as digits as its factorization.

1100425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44027 (or 44022 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1100425 is about 1049.0114394038. The cubic root of 1100425 is about 103.2413043505.

Adding to 1100425 its reverse (5240011), we get a palindrome (6340436).

The spelling of 1100425 in words is "one million, one hundred thousand, four hundred twenty-five".