136247320 has 64 divisors (see below), whose sum is σ = 343504800. Its totient is φ = 48199680.

The previous prime is 136247317. The next prime is 136247329. The reversal of 136247320 is 23742631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136247329) 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, 12096 + ... + 20464.

Almost surely, 2^136247320 is an apocalyptic number.

136247320 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 136247320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171752400).

136247320 is an abundant number, since it is smaller than the sum of its proper divisors (207257480).

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

136247320 is a wasteful number, since it uses less digits than its factorization.

136247320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428 (or 8424 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 136247320 is about 11672.5027307771. The cubic root of 136247320 is about 514.5678594388.

Adding to 136247320 its reverse (23742631), we get a palindrome (159989951).

It can be divided in two parts, 136 and 247320, that added together give a triangular number (247456 = T₇₀₃).

The spelling of 136247320 in words is "one hundred thirty-six million, two hundred forty-seven thousand, three hundred twenty".