20133154 has 4 divisors (see below), whose sum is σ = 30199734. Its totient is φ = 10066576.

The previous prime is 20133149. The next prime is 20133193. The reversal of 20133154 is 45133102.

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., 19123129 + 1010025 = 4373^2 + 1005^2 .

It is an unprimeable number.

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, 5033287 + ... + 5033290.

Almost surely, 2^20133154 is an apocalyptic number.

20133154 is a deficient number, since it is larger than the sum of its proper divisors (10066580).

20133154 is a wasteful number, since it uses less digits than its factorization.

20133154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066579.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20133154 is about 4486.9983285043. The cubic root of 20133154 is about 272.0428223381.

Adding to 20133154 its reverse (45133102), we get a palindrome (65266256).

The spelling of 20133154 in words is "twenty million, one hundred thirty-three thousand, one hundred fifty-four".