1061128609 has 8 divisors (see below), whose sum is σ = 1067976000. Its totient is φ = 1054292400.

The previous prime is 1061128603. The next prime is 1061128613. The reversal of 1061128609 is 9068211601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1061128609 is a prime.

It is a super-2 number, since 2×1061128609² = 2251987849676549762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061128603) 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, 269364 + ... + 273274.

It is an arithmetic number, because the mean of its divisors is an integer number (133497000).

Almost surely, 2^1061128609 is an apocalyptic number.

It is an amenable number.

1061128609 is a deficient number, since it is larger than the sum of its proper divisors (6847391).

1061128609 is a wasteful number, since it uses less digits than its factorization.

1061128609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1061128609 is about 32574.9690560099. The cubic root of 1061128609 is about 1019.9745633154.

The spelling of 1061128609 in words is "one billion, sixty-one million, one hundred twenty-eight thousand, six hundred nine".