1025234873 has 4 divisors (see below), whose sum is σ = 1104099108. Its totient is φ = 946370640.

The previous prime is 1025234839. The next prime is 1025234891. The reversal of 1025234873 is 3784325201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3784325201 = 51001 ⋅74201.

It can be written as a sum of positive squares in 2 ways, for example, as 675844009 + 349390864 = 25997^2 + 18692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025234873 - 2¹⁰ = 1025233849 is a prime.

It is a super-2 number, since 2×1025234873² = 2102213089630652258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028234873) 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, 39432098 + ... + 39432123.

It is an arithmetic number, because the mean of its divisors is an integer number (276024777).

Almost surely, 2^1025234873 is an apocalyptic number.

1025234873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1025234873 is a deficient number, since it is larger than the sum of its proper divisors (78864235).

1025234873 is an equidigital number, since it uses as much as digits as its factorization.

1025234873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78864234.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 1025234873 is about 32019.2890770548. The cubic root of 1025234873 is about 1008.3418444713.

The spelling of 1025234873 in words is "one billion, twenty-five million, two hundred thirty-four thousand, eight hundred seventy-three".