135843420 has 24 divisors (see below), whose sum is σ = 380361744. Its totient is φ = 36224896.

The previous prime is 135843419. The next prime is 135843439. The reversal of 135843420 is 24348531.

It is a super-3 number, since 3×135843420³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131969 + ... + 1132088.

It is an arithmetic number, because the mean of its divisors is an integer number (15848406).

Almost surely, 2^135843420 is an apocalyptic number.

135843420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135843420 is an abundant number, since it is smaller than the sum of its proper divisors (244518324).

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

135843420 is a wasteful number, since it uses less digits than its factorization.

135843420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264069 (or 2264067 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 135843420 is about 11655.1885441635. The cubic root of 135843420 is about 514.0588838756.

The spelling of 135843420 in words is "one hundred thirty-five million, eight hundred forty-three thousand, four hundred twenty".