20159419 has 8 divisors (see below), whose sum is σ = 23126528. Its totient is φ = 17214120.

The previous prime is 20159417. The next prime is 20159443. The reversal of 20159419 is 91495102.

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

It is not a de Polignac number, because 20159419 - 2¹ = 20159417 is a prime.

It is a super-2 number, since 2×20159419² = 812804348835122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20159417) 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, 3417 + ... + 7210.

It is an arithmetic number, because the mean of its divisors is an integer number (2890816).

Almost surely, 2^20159419 is an apocalyptic number.

20159419 is a deficient number, since it is larger than the sum of its proper divisors (2967109).

20159419 is a wasteful number, since it uses less digits than its factorization.

20159419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10905.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 20159419 is about 4489.9241641703. The cubic root of 20159419 is about 272.1610700776.

The spelling of 20159419 in words is "twenty million, one hundred fifty-nine thousand, four hundred nineteen".