4002135253 has 2 divisors, whose sum is σ = 4002135254. Its totient is φ = 4002135252.

The previous prime is 4002135209. The next prime is 4002135289. The reversal of 4002135253 is 3525312004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3552398404 + 449736849 = 59602^2 + 21207^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002135253 - 2²⁵ = 3968580821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4002135853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001067626 + 2001067627.

It is an arithmetic number, because the mean of its divisors is an integer number (2001067627).

Almost surely, 2^4002135253 is an apocalyptic number.

It is an amenable number.

4002135253 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002135253 is an equidigital number, since it uses as much as digits as its factorization.

4002135253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 4002135253 is about 63262.4316083408. The cubic root of 4002135253 is about 1587.6834602946.

Adding to 4002135253 its reverse (3525312004), we get a palindrome (7527447257).

The spelling of 4002135253 in words is "four billion, two million, one hundred thirty-five thousand, two hundred fifty-three".