135452021253 has 16 divisors (see below), whose sum is σ = 187198233600. Its totient is φ = 87060931056.

The previous prime is 135452021183. The next prime is 135452021281. The reversal of 135452021253 is 352120254531.

It is not a de Polignac number, because 135452021253 - 2¹⁷ = 135451890181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135452022253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7159603 + ... + 7178496.

It is an arithmetic number, because the mean of its divisors is an integer number (11699889600).

Almost surely, 2^135452021253 is an apocalyptic number.

It is an amenable number.

135452021253 is a deficient number, since it is larger than the sum of its proper divisors (51746212347).

135452021253 is a wasteful number, since it uses less digits than its factorization.

135452021253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14338216.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 135452021253 its reverse (352120254531), we get a palindrome (487572275784).

The spelling of 135452021253 in words is "one hundred thirty-five billion, four hundred fifty-two million, twenty-one thousand, two hundred fifty-three".