1071611617 has 4 divisors (see below), whose sum is σ = 1076996800. Its totient is φ = 1066226436.

The previous prime is 1071611581. The next prime is 1071611633. The reversal of 1071611617 is 7161161701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7161161701 = 3203 ⋅2235767.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1071611617 is a prime.

It is a super-2 number, since 2×1071611617² = 2296702915378709378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071611417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2692293 + ... + 2692690.

It is an arithmetic number, because the mean of its divisors is an integer number (269249200).

Almost surely, 2^1071611617 is an apocalyptic number.

It is an amenable number.

1071611617 is a deficient number, since it is larger than the sum of its proper divisors (5385183).

1071611617 is an equidigital number, since it uses as much as digits as its factorization.

1071611617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385182.

The product of its (nonzero) digits is 1764, while the sum is 31.

The square root of 1071611617 is about 32735.4794832762. The cubic root of 1071611617 is about 1023.3223771198.

The spelling of 1071611617 in words is "one billion, seventy-one million, six hundred eleven thousand, six hundred seventeen".