135406420 has 12 divisors (see below), whose sum is σ = 284353524. Its totient is φ = 54162560.

The previous prime is 135406417. The next prime is 135406429. The reversal of 135406420 is 24604531.

It can be written as a sum of positive squares in 2 ways, for example, as 86936976 + 48469444 = 9324^2 + 6962^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135406429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385141 + ... + 3385180.

It is an arithmetic number, because the mean of its divisors is an integer number (23696127).

Almost surely, 2^135406420 is an apocalyptic number.

135406420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135406420 is an abundant number, since it is smaller than the sum of its proper divisors (148947104).

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

135406420 is a wasteful number, since it uses less digits than its factorization.

135406420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770330 (or 6770328 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 135406420 is about 11636.4264273874. The cubic root of 135406420 is about 513.5070596943.

The spelling of 135406420 in words is "one hundred thirty-five million, four hundred six thousand, four hundred twenty".