135602041643 has 4 divisors (see below), whose sum is σ = 141497782608. Its totient is φ = 129706300680.

The previous prime is 135602041639. The next prime is 135602041649. The reversal of 135602041643 is 346140206531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135602041643 - 2² = 135602041639 is a prime.

It is a super-2 number, since 2×135602041643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135602041649) 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, 2947870448 + ... + 2947870493.

It is an arithmetic number, because the mean of its divisors is an integer number (35374445652).

Almost surely, 2^135602041643 is an apocalyptic number.

135602041643 is a deficient number, since it is larger than the sum of its proper divisors (5895740965).

135602041643 is an equidigital number, since it uses as much as digits as its factorization.

135602041643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895740964.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 135602041643 in words is "one hundred thirty-five billion, six hundred two million, forty-one thousand, six hundred forty-three".