135453450035521 has 4 divisors (see below), whose sum is σ = 141342730471872. Its totient is φ = 129564169599172.

The previous prime is 135453450035509. The next prime is 135453450035539. The reversal of 135453450035521 is 125530054354531.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-135453450035521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135453450035221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2944640218141 + ... + 2944640218186.

It is an arithmetic number, because the mean of its divisors is an integer number (35335682617968).

Almost surely, 2^{135453450035521} is an apocalyptic number.

It is an amenable number.

135453450035521 is a deficient number, since it is larger than the sum of its proper divisors (5889280436351).

135453450035521 is an equidigital number, since it uses as much as digits as its factorization.

135453450035521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889280436350.

The product of its (nonzero) digits is 2700000, while the sum is 46.

The spelling of 135453450035521 in words is "one hundred thirty-five trillion, four hundred fifty-three billion, four hundred fifty million, thirty-five thousand, five hundred twenty-one".