1090925 has 12 divisors (see below), whose sum is σ = 1476096. Its totient is φ = 793200.

The previous prime is 1090919. The next prime is 1090927. The reversal of 1090925 is 5290901.

It is a happy number.

It is not a de Polignac number, because 1090925 - 2⁴ = 1090909 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1090894 and 1090903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1709 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (123008).

2^1090925 is an apocalyptic number.

It is an amenable number.

1090925 is a deficient number, since it is larger than the sum of its proper divisors (385171).

1090925 is a wasteful number, since it uses less digits than its factorization.

1090925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988 (or 3983 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 1090925 is about 1044.4735516039. The cubic root of 1090925 is about 102.9433502542.

The spelling of 1090925 in words is "one million, ninety thousand, nine hundred twenty-five".