1071817825 has 24 divisors (see below), whose sum is σ = 1493529408. Its totient is φ = 757078080.

The previous prime is 1071817793. The next prime is 1071817841. The reversal of 1071817825 is 5287181701.

It is not a de Polignac number, because 1071817825 - 2⁵ = 1071817793 is a prime.

It is a super-2 number, since 2×1071817825² = 2297586899975461250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 64219 + ... + 79168.

It is an arithmetic number, because the mean of its divisors is an integer number (62230392).

Almost surely, 2^1071817825 is an apocalyptic number.

It is an amenable number.

1071817825 is a deficient number, since it is larger than the sum of its proper divisors (421711583).

1071817825 is a wasteful number, since it uses less digits than its factorization.

1071817825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143433 (or 143428 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 40.

The square root of 1071817825 is about 32738.6289419701. The cubic root of 1071817825 is about 1023.3880115106.

The spelling of 1071817825 in words is "one billion, seventy-one million, eight hundred seventeen thousand, eight hundred twenty-five".