1025894071 has 4 divisors (see below), whose sum is σ = 1025958712. Its totient is φ = 1025829432.

The previous prime is 1025894069. The next prime is 1025894083. The reversal of 1025894071 is 1704985201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1025894071 - 2¹ = 1025894069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025894071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025894021) 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, 9676 + ... + 46318.

It is an arithmetic number, because the mean of its divisors is an integer number (256489678).

Almost surely, 2^1025894071 is an apocalyptic number.

1025894071 is a deficient number, since it is larger than the sum of its proper divisors (64641).

1025894071 is an equidigital number, since it uses as much as digits as its factorization.

1025894071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64640.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 1025894071 is about 32029.5811867717. The cubic root of 1025894071 is about 1008.5579102512.

It can be divided in two parts, 10258 and 94071, that added together give a square (104329 = 323²).

The spelling of 1025894071 in words is "one billion, twenty-five million, eight hundred ninety-four thousand, seventy-one".