1025854 has 4 divisors (see below), whose sum is σ = 1538784. Its totient is φ = 512926.

The previous prime is 1025839. The next prime is 1025873. The reversal of 1025854 is 4585201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4585201 = 113 ⋅40577.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256462 + ... + 256465.

It is an arithmetic number, because the mean of its divisors is an integer number (384696).

2^1025854 is an apocalyptic number.

1025854 is a deficient number, since it is larger than the sum of its proper divisors (512930).

1025854 is an equidigital number, since it uses as much as digits as its factorization.

1025854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512929.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1025854 is about 1012.8445092905. The cubic root of 1025854 is about 100.8544778795.

The spelling of 1025854 in words is "one million, twenty-five thousand, eight hundred fifty-four".