135828545021 has 32 divisors (see below), whose sum is σ = 158580011520. Its totient is φ = 115199732736.

The previous prime is 135828544997. The next prime is 135828545023. The reversal of 135828545021 is 120545828531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135828545021 is a prime.

It is a super-3 number, since 3×135828545021³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135828545023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4107170 + ... + 4140108.

It is an arithmetic number, because the mean of its divisors is an integer number (4955625360).

Almost surely, 2^135828545021 is an apocalyptic number.

It is an amenable number.

135828545021 is a deficient number, since it is larger than the sum of its proper divisors (22751466499).

135828545021 is a wasteful number, since it uses less digits than its factorization.

135828545021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33413.

The product of its (nonzero) digits is 384000, while the sum is 44.

The spelling of 135828545021 in words is "one hundred thirty-five billion, eight hundred twenty-eight million, five hundred forty-five thousand, twenty-one".