136875420 has 120 divisors (see below), whose sum is σ = 468479088. Its totient is φ = 33177600.

The previous prime is 136875379. The next prime is 136875443. The reversal of 136875420 is 24578631.

136875420 is a `hidden beast` number, since 1 + 36 + 87 + 542 + 0 = 666.

136875420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13980 + ... + 21660.

Almost surely, 2^136875420 is an apocalyptic number.

136875420 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 136875420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234239544).

136875420 is an abundant number, since it is smaller than the sum of its proper divisors (331603668).

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

136875420 is a wasteful number, since it uses less digits than its factorization.

136875420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7713 (or 7702 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 136875420 is about 11699.3769064852. The cubic root of 136875420 is about 515.3573665643.

The spelling of 136875420 in words is "one hundred thirty-six million, eight hundred seventy-five thousand, four hundred twenty".