20316154 has 4 divisors (see below), whose sum is σ = 30474234. Its totient is φ = 10158076.

The previous prime is 20316151. The next prime is 20316161. The reversal of 20316154 is 45161302.

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

It can be written as a sum of positive squares in only one way, i.e., 17682025 + 2634129 = 4205^2 + 1623^2 .

It is a super-2 number, since 2×20316154² = 825492226703432, which contains 22 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (20316151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5079037 + ... + 5079040.

Almost surely, 2^20316154 is an apocalyptic number.

20316154 is a deficient number, since it is larger than the sum of its proper divisors (10158080).

20316154 is a wasteful number, since it uses less digits than its factorization.

20316154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10158079.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20316154 is about 4507.3444510044. The cubic root of 20316154 is about 272.8645806032.

Adding to 20316154 its reverse (45161302), we get a palindrome (65477456).

The spelling of 20316154 in words is "twenty million, three hundred sixteen thousand, one hundred fifty-four".