4020138533 has 2 divisors, whose sum is σ = 4020138534. Its totient is φ = 4020138532.

The previous prime is 4020138487. The next prime is 4020138607. The reversal of 4020138533 is 3358310204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3464735044 + 555403489 = 58862^2 + 23567^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020138533 - 2¹⁶ = 4020072997 is a prime.

It is a super-2 number, since 2×4020138533² = 32323027649022784178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4020138496 and 4020138505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020138233) 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, 2010069266 + 2010069267.

It is an arithmetic number, because the mean of its divisors is an integer number (2010069267).

Almost surely, 2^4020138533 is an apocalyptic number.

It is an amenable number.

4020138533 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020138533 is an equidigital number, since it uses as much as digits as its factorization.

4020138533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 4020138533 is about 63404.5623989315. The cubic root of 4020138533 is about 1590.0605877259.

Adding to 4020138533 its reverse (3358310204), we get a palindrome (7378448737).

The spelling of 4020138533 in words is "four billion, twenty million, one hundred thirty-eight thousand, five hundred thirty-three".