135351671420 has 96 divisors (see below), whose sum is σ = 342096652800. Its totient is φ = 43943848704.

The previous prime is 135351671393. The next prime is 135351671453. The reversal of 135351671420 is 24176153531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6530594 + ... + 6551286.

It is an arithmetic number, because the mean of its divisors is an integer number (3563506800).

Almost surely, 2^135351671420 is an apocalyptic number.

135351671420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135351671420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171048326400).

135351671420 is an abundant number, since it is smaller than the sum of its proper divisors (206744981380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135351671420 is a wasteful number, since it uses less digits than its factorization.

135351671420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23187 (or 23185 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 135351671420 in words is "one hundred thirty-five billion, three hundred fifty-one million, six hundred seventy-one thousand, four hundred twenty".