136342872 has 64 divisors (see below), whose sum is σ = 380073600. Its totient is φ = 45286560.

The previous prime is 136342837. The next prime is 136342889. The reversal of 136342872 is 278243631.

It is a happy number.

136342872 is a `hidden beast` number, since 13 + 634 + 2 + 8 + 7 + 2 = 666.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70543 + ... + 72449.

It is an arithmetic number, because the mean of its divisors is an integer number (5938650).

Almost surely, 2^136342872 is an apocalyptic number.

136342872 is a gapful number since it is divisible by the number (12) 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 136342872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190036800).

136342872 is an abundant number, since it is smaller than the sum of its proper divisors (243730728).

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

136342872 is a wasteful number, since it uses less digits than its factorization.

136342872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253 (or 2243 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 136342872 is about 11676.5950516407. The cubic root of 136342872 is about 514.6881223512.

The spelling of 136342872 in words is "one hundred thirty-six million, three hundred forty-two thousand, eight hundred seventy-two".