20154033 has 12 divisors (see below), whose sum is σ = 29169348. Its totient is φ = 13409280.

The previous prime is 20154019. The next prime is 20154037. The reversal of 20154033 is 33045102.

It can be written as a sum of positive squares in 2 ways, for example, as 17539344 + 2614689 = 4188^2 + 1617^2 .

It is not a de Polignac number, because 20154033 - 2¹⁰ = 20153009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20153997 and 20154015.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3253 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (2430779).

Almost surely, 2^20154033 is an apocalyptic number.

It is an amenable number.

20154033 is a deficient number, since it is larger than the sum of its proper divisors (9015315).

20154033 is a wasteful number, since it uses less digits than its factorization.

20154033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464 (or 4461 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20154033 is about 4489.3243366903. The cubic root of 20154033 is about 272.1368301249.

Adding to 20154033 its reverse (33045102), we get a palindrome (53199135).

The spelling of 20154033 in words is "twenty million, one hundred fifty-four thousand, thirty-three".