1071431201 has 8 divisors (see below), whose sum is σ = 1081223304. Its totient is φ = 1061683200.

The previous prime is 1071431197. The next prime is 1071431213. The reversal of 1071431201 is 1021341701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 568774801 + 502656400 = 23849^2 + 22420^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1071431201 - 2² = 1071431197 is a prime.

It is a super-2 number, since 2×1071431201² = 2295929636952604802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071431281) 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 7 ways as a sum of consecutive naturals, for example, 38801 + ... + 60401.

It is an arithmetic number, because the mean of its divisors is an integer number (135152913).

Almost surely, 2^1071431201 is an apocalyptic number.

It is an amenable number.

1071431201 is a deficient number, since it is larger than the sum of its proper divisors (9792103).

1071431201 is a wasteful number, since it uses less digits than its factorization.

1071431201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22051.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1071431201 is about 32732.7237027413. The cubic root of 1071431201 is about 1023.2649452141.

Adding to 1071431201 its reverse (1021341701), we get a palindrome (2092772902).

The spelling of 1071431201 in words is "one billion, seventy-one million, four hundred thirty-one thousand, two hundred one".