20046154 has 4 divisors (see below), whose sum is σ = 30069234. Its totient is φ = 10023076.

The previous prime is 20046151. The next prime is 20046157. The reversal of 20046154 is 45164002.

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

It is an interprime number because it is at equal distance from previous prime (20046151) and next prime (20046157).

It can be written as a sum of positive squares in only one way, i.e., 14175225 + 5870929 = 3765^2 + 2423^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20046151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011537 + ... + 5011540.

Almost surely, 2^20046154 is an apocalyptic number.

20046154 is a deficient number, since it is larger than the sum of its proper divisors (10023080).

20046154 is a wasteful number, since it uses less digits than its factorization.

20046154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023079.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20046154 is about 4477.2931554679. The cubic root of 20046154 is about 271.6504032987.

The spelling of 20046154 in words is "twenty million, forty-six thousand, one hundred fifty-four".