136745712 has 80 divisors (see below), whose sum is σ = 405212160. Its totient is φ = 44107200.

The previous prime is 136745689. The next prime is 136745729. The reversal of 136745712 is 217547631.

It is a happy number.

136745712 is a `hidden beast` number, since 13 + 6 + 74 + 571 + 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8287 + ... + 18497.

It is an arithmetic number, because the mean of its divisors is an integer number (5065152).

Almost surely, 2^136745712 is an apocalyptic number.

136745712 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 136745712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202606080).

136745712 is an abundant number, since it is smaller than the sum of its proper divisors (268466448).

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

136745712 is a wasteful number, since it uses less digits than its factorization.

136745712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10259 (or 10247 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 136745712 is about 11693.8322204485. The cubic root of 136745712 is about 515.1945248123.

The spelling of 136745712 in words is "one hundred thirty-six million, seven hundred forty-five thousand, seven hundred twelve".