135451135253 has 4 divisors (see below), whose sum is σ = 154801297440. Its totient is φ = 116100973068.

The previous prime is 135451135217. The next prime is 135451135273. The reversal of 135451135253 is 352531154531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135451135253 - 2⁶ = 135451135189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135451135273) 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 3 ways as a sum of consecutive naturals, for example, 9675081083 + ... + 9675081096.

It is an arithmetic number, because the mean of its divisors is an integer number (38700324360).

Almost surely, 2^135451135253 is an apocalyptic number.

It is an amenable number.

135451135253 is a deficient number, since it is larger than the sum of its proper divisors (19350162187).

135451135253 is an equidigital number, since it uses as much as digits as its factorization.

135451135253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19350162186.

The product of its digits is 135000, while the sum is 38.

Adding to 135451135253 its reverse (352531154531), we get a palindrome (487982289784).

The spelling of 135451135253 in words is "one hundred thirty-five billion, four hundred fifty-one million, one hundred thirty-five thousand, two hundred fifty-three".