20148159 has 4 divisors (see below), whose sum is σ = 26864216. Its totient is φ = 13432104.

The previous prime is 20148137. The next prime is 20148211. The reversal of 20148159 is 95184102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20148159 - 2⁸ = 20147903 is a prime.

It is a super-3 number, since 3×20148159³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20148259) 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, 3358024 + ... + 3358029.

It is an arithmetic number, because the mean of its divisors is an integer number (6716054).

Almost surely, 2^20148159 is an apocalyptic number.

20148159 is a deficient number, since it is larger than the sum of its proper divisors (6716057).

20148159 is an equidigital number, since it uses as much as digits as its factorization.

20148159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716056.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 20148159 is about 4488.6700702992. The cubic root of 20148159 is about 272.1103889810.

The spelling of 20148159 in words is "twenty million, one hundred forty-eight thousand, one hundred fifty-nine".