1061606159 has 4 divisors (see below), whose sum is σ = 1061707920. Its totient is φ = 1061504400.

The previous prime is 1061606149. The next prime is 1061606201. The reversal of 1061606159 is 9516061601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9516061601 = 277 ⋅34354013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1061606159 is a prime.

It is a super-2 number, since 2×1061606159² = 2254015273653466562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061606149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33179 + ... + 56780.

It is an arithmetic number, because the mean of its divisors is an integer number (265426980).

Almost surely, 2^1061606159 is an apocalyptic number.

1061606159 is a deficient number, since it is larger than the sum of its proper divisors (101761).

1061606159 is an equidigital number, since it uses as much as digits as its factorization.

1061606159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101760.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1061606159 is about 32582.2982461336. The cubic root of 1061606159 is about 1020.1275500496.

The spelling of 1061606159 in words is "one billion, sixty-one million, six hundred six thousand, one hundred fifty-nine".