1061436685 has 16 divisors (see below), whose sum is σ = 1329326640. Its totient is φ = 812600320.

The previous prime is 1061436679. The next prime is 1061436709. The reversal of 1061436685 is 5866341601.

It can be written as a sum of positive squares in 8 ways, for example, as 188293284 + 873143401 = 13722^2 + 29549^2 .

It is not a de Polignac number, because 1061436685 - 2¹⁷ = 1061305613 is a prime.

It is a super-2 number, since 2×1061436685² = 2253295672527578450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16006 + ... + 48775.

It is an arithmetic number, because the mean of its divisors is an integer number (83082915).

Almost surely, 2^1061436685 is an apocalyptic number.

It is an amenable number.

1061436685 is a deficient number, since it is larger than the sum of its proper divisors (267889955).

1061436685 is a wasteful number, since it uses less digits than its factorization.

1061436685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64928.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1061436685 is about 32579.6974356730. The cubic root of 1061436685 is about 1020.0732630319.

The spelling of 1061436685 in words is "one billion, sixty-one million, four hundred thirty-six thousand, six hundred eighty-five".