20069015 has 8 divisors (see below), whose sum is σ = 24913440. Its totient is φ = 15501472.

The previous prime is 20068999. The next prime is 20069017. The reversal of 20069015 is 51096002.

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

It is a cyclic number.

It is not a de Polignac number, because 20069015 - 2⁴ = 20068999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20069017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69059 + ... + 69348.

It is an arithmetic number, because the mean of its divisors is an integer number (3114180).

Almost surely, 2^20069015 is an apocalyptic number.

20069015 is a deficient number, since it is larger than the sum of its proper divisors (4844425).

20069015 is a wasteful number, since it uses less digits than its factorization.

20069015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138441.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 20069015 is about 4479.8454214403. The cubic root of 20069015 is about 271.7536290949.

The spelling of 20069015 in words is "twenty million, sixty-nine thousand, fifteen".