1025494 has 4 divisors (see below), whose sum is σ = 1538244. Its totient is φ = 512746.

The previous prime is 1025483. The next prime is 1025503. The reversal of 1025494 is 4945201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4945201 = 1499 ⋅3299.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256372 + ... + 256375.

It is an arithmetic number, because the mean of its divisors is an integer number (384561).

2^1025494 is an apocalyptic number.

1025494 is a deficient number, since it is larger than the sum of its proper divisors (512750).

1025494 is an equidigital number, since it uses as much as digits as its factorization.

1025494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512749.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1025494 is about 1012.6667763880. Note that the first 3 decimals coincide. The cubic root of 1025494 is about 100.8426789750.

The spelling of 1025494 in words is "one million, twenty-five thousand, four hundred ninety-four".