1009925 has 24 divisors (see below), whose sum is σ = 1488000. Its totient is φ = 665280.

The previous prime is 1009909. The next prime is 1009927. The reversal of 1009925 is 5299001.

It is a happy number.

1009925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1009925 - 2⁴ = 1009909 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1009894 and 1009903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4976 + ... + 5174.

It is an arithmetic number, because the mean of its divisors is an integer number (62000).

2^1009925 is an apocalyptic number.

It is an amenable number.

1009925 is a deficient number, since it is larger than the sum of its proper divisors (478075).

1009925 is a wasteful number, since it uses less digits than its factorization.

1009925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 240 counting only the distinct ones).

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

The square root of 1009925 is about 1004.9502475247. The cubic root of 1009925 is about 100.3297448217.

The spelling of 1009925 in words is "one million, nine thousand, nine hundred twenty-five".