20159069 has 8 divisors (see below), whose sum is σ = 23092608. Its totient is φ = 17238960.

The previous prime is 20159047. The next prime is 20159107. The reversal of 20159069 is 96095102.

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-20159069 is a prime.

It is a super-2 number, since 2×20159069² = 812776125893522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20159369) 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, 104 + ... + 6350.

It is an arithmetic number, because the mean of its divisors is an integer number (2886576).

Almost surely, 2^20159069 is an apocalyptic number.

It is an amenable number.

20159069 is a deficient number, since it is larger than the sum of its proper divisors (2933539).

20159069 is an equidigital number, since it uses as much as digits as its factorization.

20159069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 20159069 is about 4489.8851878417. The cubic root of 20159069 is about 272.1594950169.

It can be divided in two parts, 2015 and 9069, that multiplied together give a triangular number (18274035 = T₆₀₄₅).

The spelling of 20159069 in words is "twenty million, one hundred fifty-nine thousand, sixty-nine".