1071431000 has 64 divisors (see below), whose sum is σ = 2565557280. Its totient is φ = 418588800.

The previous prime is 1071430999. The next prime is 1071431003. The reversal of 1071431000 is 1341701.

It is a super-2 number, since 2×1071431000² = 2295928775522000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1071431000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071431003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30542 + ... + 55458.

Almost surely, 2^1071431000 is an apocalyptic number.

1071431000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282778640).

1071431000 is an abundant number, since it is smaller than the sum of its proper divisors (1494126280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1071431000 is a wasteful number, since it uses less digits than its factorization.

1071431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24981 (or 24967 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1071431000 is about 32732.7206324192. The cubic root of 1071431000 is about 1023.2648812261.

Adding to 1071431000 its reverse (1341701), we get a palindrome (1072772701).

It can be divided in two parts, 10714 and 31000, that added together give a palindrome (41714).

The spelling of 1071431000 in words is "one billion, seventy-one million, four hundred thirty-one thousand".