1025319 has 4 divisors (see below), whose sum is σ = 1367096. Its totient is φ = 683544.

The previous prime is 1025303. The next prime is 1025327. The reversal of 1025319 is 9135201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9135201 = 3 ⋅3045067.

It is not a de Polignac number, because 1025319 - 2⁴ = 1025303 is a prime.

It is a super-2 number, since 2×1025319² = 2102558103522, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025295 and 1025304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170884 + ... + 170889.

It is an arithmetic number, because the mean of its divisors is an integer number (341774).

2^1025319 is an apocalyptic number.

1025319 is a deficient number, since it is larger than the sum of its proper divisors (341777).

1025319 is an equidigital number, since it uses as much as digits as its factorization.

1025319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341776.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1025319 is about 1012.5803671808. The cubic root of 1025319 is about 100.8369423990.

The spelling of 1025319 in words is "one million, twenty-five thousand, three hundred nineteen".