136280072 has 32 divisors (see below), whose sum is σ = 267062400. Its totient is φ = 65131584.

The previous prime is 136280071. The next prime is 136280099. The reversal of 136280072 is 270082631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (136280071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11954 + ... + 20382.

It is an arithmetic number, because the mean of its divisors is an integer number (8345700).

Almost surely, 2^136280072 is an apocalyptic number.

It is an amenable number.

136280072 is a deficient number, since it is larger than the sum of its proper divisors (130782328).

136280072 is a wasteful number, since it uses less digits than its factorization.

136280072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8525 (or 8521 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 136280072 is about 11673.9056018112. The cubic root of 136280072 is about 514.6090878370.

The spelling of 136280072 in words is "one hundred thirty-six million, two hundred eighty thousand, seventy-two".