1071471561 has 8 divisors (see below), whose sum is σ = 1434321504. Its totient is φ = 711468000.

The previous prime is 1071471551. The next prime is 1071471581. The reversal of 1071471561 is 1651741701.

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

It is not a de Polignac number, because 1071471561 - 2¹⁰ = 1071470537 is a prime.

It is a super-2 number, since 2×1071471561² = 2296102612063553442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071471551) 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, 710716 + ... + 712221.

It is an arithmetic number, because the mean of its divisors is an integer number (179290188).

Almost surely, 2^1071471561 is an apocalyptic number.

It is an amenable number.

1071471561 is a deficient number, since it is larger than the sum of its proper divisors (362849943).

1071471561 is a wasteful number, since it uses less digits than its factorization.

1071471561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423191.

The product of its (nonzero) digits is 5880, while the sum is 33.

The square root of 1071471561 is about 32733.3402053625. The cubic root of 1071471561 is about 1023.2777935907.

The spelling of 1071471561 in words is "one billion, seventy-one million, four hundred seventy-one thousand, five hundred sixty-one".