135422140 has 48 divisors (see below), whose sum is σ = 327398400. Its totient is φ = 46089792.

The previous prime is 135422123. The next prime is 135422143. The reversal of 135422140 is 41224531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135422143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15981 + ... + 22939.

It is an arithmetic number, because the mean of its divisors is an integer number (6820800).

Almost surely, 2^135422140 is an apocalyptic number.

135422140 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 135422140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163699200).

135422140 is an abundant number, since it is smaller than the sum of its proper divisors (191976260).

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

135422140 is a wasteful number, since it uses less digits than its factorization.

135422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114 (or 7112 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 135422140 is about 11637.1018728891. The cubic root of 135422140 is about 513.5269307822.

Adding to 135422140 its reverse (41224531), we get a palindrome (176646671).

The spelling of 135422140 in words is "one hundred thirty-five million, four hundred twenty-two thousand, one hundred forty".