135420361555 has 8 divisors (see below), whose sum is σ = 162521343792. Its totient is φ = 108325015968.

The previous prime is 135420361553. The next prime is 135420361567. The reversal of 135420361555 is 555163024531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135420361555 - 2¹ = 135420361553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135420361553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356124 + ... + 1452553.

It is an arithmetic number, because the mean of its divisors is an integer number (20315167974).

Almost surely, 2^135420361555 is an apocalyptic number.

135420361555 is a deficient number, since it is larger than the sum of its proper divisors (27100982237).

135420361555 is an equidigital number, since it uses as much as digits as its factorization.

135420361555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818325.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 135420361555 in words is "one hundred thirty-five billion, four hundred twenty million, three hundred sixty-one thousand, five hundred fifty-five".