136554240 has 144 divisors (see below), whose sum is σ = 446802048. Its totient is φ = 35524608.

The previous prime is 136554233. The next prime is 136554281. The reversal of 136554240 is 42455631.

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

It is a junction number, because it is equal to n+sod(n) for n = 136554198 and 136554207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164707 + ... + 165533.

It is an arithmetic number, because the mean of its divisors is an integer number (3102792).

Almost surely, 2^136554240 is an apocalyptic number.

136554240 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 136554240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223401024).

136554240 is an abundant number, since it is smaller than the sum of its proper divisors (310247808).

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

136554240 is an equidigital number, since it uses as much as digits as its factorization.

136554240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 136554240 is about 11685.6424727098. The cubic root of 136554240 is about 514.9539532148.

The spelling of 136554240 in words is "one hundred thirty-six million, five hundred fifty-four thousand, two hundred forty".