135401556213 has 24 divisors (see below), whose sum is σ = 243840033216. Its totient is φ = 70338470400.

The previous prime is 135401556197. The next prime is 135401556253. The reversal of 135401556213 is 312655104531.

135401556213 is a `hidden beast` number, since 1 + 3 + 540 + 1 + 55 + 62 + 1 + 3 = 666.

It is not a de Polignac number, because 135401556213 - 2⁴ = 135401556197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135401556253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97691628 + ... + 97693013.

It is an arithmetic number, because the mean of its divisors is an integer number (10160001384).

Almost surely, 2^135401556213 is an apocalyptic number.

It is an amenable number.

135401556213 is a deficient number, since it is larger than the sum of its proper divisors (108438477003).

135401556213 is a wasteful number, since it uses less digits than its factorization.

135401556213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195384665 (or 195384662 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 135401556213 in words is "one hundred thirty-five billion, four hundred one million, five hundred fifty-six thousand, two hundred thirteen".