1085131025 has 24 divisors (see below), whose sum is σ = 1480063008. Its totient is φ = 789162000.

The previous prime is 1085130997. The next prime is 1085131031. The reversal of 1085131025 is 5201315801.

It is a happy number.

It is not a de Polignac number, because 1085131025 - 2¹⁰ = 1085130001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1085130985 and 1085131003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16970 + ... + 49580.

It is an arithmetic number, because the mean of its divisors is an integer number (61669292).

Almost surely, 2^1085131025 is an apocalyptic number.

It is an amenable number.

1085131025 is a deficient number, since it is larger than the sum of its proper divisors (394931983).

1085131025 is an equidigital number, since it uses as much as digits as its factorization.

1085131025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32654 (or 32627 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1085131025 is about 32941.3270072716. The cubic root of 1085131025 is about 1027.6078033875.

Adding to 1085131025 its reverse (5201315801), we get a palindrome (6286446826).

The spelling of 1085131025 in words is "one billion, eighty-five million, one hundred thirty-one thousand, twenty-five".