1025871001 has 8 divisors (see below), whose sum is σ = 1133443584. Its totient is φ = 923545920.

The previous prime is 1025870983. The next prime is 1025871019. The reversal of 1025871001 is 1001785201.

1025871001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1025870983) and next prime (1025871019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025871001 is a prime.

It is a super-2 number, since 2×1025871001² = 2104822621385484002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1025871031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311465 + ... + 1312246.

It is an arithmetic number, because the mean of its divisors is an integer number (141680448).

Almost surely, 2^1025871001 is an apocalyptic number.

It is an amenable number.

1025871001 is a deficient number, since it is larger than the sum of its proper divisors (107572583).

1025871001 is a wasteful number, since it uses less digits than its factorization.

1025871001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623751.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 1025871001 is about 32029.2210489109. The cubic root of 1025871001 is about 1008.5503501447.

The spelling of 1025871001 in words is "one billion, twenty-five million, eight hundred seventy-one thousand, one".