1025112547 has 4 divisors (see below), whose sum is σ = 1035065200. Its totient is φ = 1015159896.

The previous prime is 1025112541. The next prime is 1025112581. The reversal of 1025112547 is 7452115201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1025112547 - 2⁷ = 1025112419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025112541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4976172 + ... + 4976377.

It is an arithmetic number, because the mean of its divisors is an integer number (258766300).

Almost surely, 2^1025112547 is an apocalyptic number.

1025112547 is a deficient number, since it is larger than the sum of its proper divisors (9952653).

1025112547 is an equidigital number, since it uses as much as digits as its factorization.

1025112547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9952652.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1025112547 is about 32017.3788277554. The cubic root of 1025112547 is about 1008.3017394073.

Adding to 1025112547 its reverse (7452115201), we get a palindrome (8477227748).

The spelling of 1025112547 in words is "one billion, twenty-five million, one hundred twelve thousand, five hundred forty-seven".