20154027 has 16 divisors (see below), whose sum is σ = 28667520. Its totient is φ = 12550272.

The previous prime is 20154019. The next prime is 20154037. The reversal of 20154027 is 72045102.

It is not a de Polignac number, because 20154027 - 2³ = 20154019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20153994 and 20154012.

It is not an unprimeable number, because it can be changed into a prime (20154037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5668 + ... + 8510.

It is an arithmetic number, because the mean of its divisors is an integer number (1791720).

Almost surely, 2^20154027 is an apocalyptic number.

20154027 is a deficient number, since it is larger than the sum of its proper divisors (8513493).

20154027 is a wasteful number, since it uses less digits than its factorization.

20154027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 20154027 is about 4489.3236684383. The cubic root of 20154027 is about 272.1368031192.

Adding to 20154027 its reverse (72045102), we get a palindrome (92199129).

The spelling of 20154027 in words is "twenty million, one hundred fifty-four thousand, twenty-seven".