1061289217 has 8 divisors (see below), whose sum is σ = 1065153320. Its totient is φ = 1057432320.

The previous prime is 1061289199. The next prime is 1061289233. The reversal of 1061289217 is 7129821601.

It can be written as a sum of positive squares in 4 ways, for example, as 33189121 + 1028100096 = 5761^2 + 32064^2 .

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 1061289217 - 2²³ = 1052900609 is a prime.

It is a super-2 number, since 2×1061289217² = 2252669604240946178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061209217) 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, 626023 + ... + 627715.

It is an arithmetic number, because the mean of its divisors is an integer number (133144165).

Almost surely, 2^1061289217 is an apocalyptic number.

It is an amenable number.

1061289217 is a deficient number, since it is larger than the sum of its proper divisors (3864103).

1061289217 is a wasteful number, since it uses less digits than its factorization.

1061289217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 1061289217 is about 32577.4341684547. The cubic root of 1061289217 is about 1020.0260204178.

The spelling of 1061289217 in words is "one billion, sixty-one million, two hundred eighty-nine thousand, two hundred seventeen".