136744001 has 4 divisors (see below), whose sum is σ = 138098004. Its totient is φ = 135390000.

The previous prime is 136743977. The next prime is 136744031. The reversal of 136744001 is 100447631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115584001 + 21160000 = 10751^2 + 4600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136744001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136744031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676850 + ... + 677051.

It is an arithmetic number, because the mean of its divisors is an integer number (34524501).

Almost surely, 2^136744001 is an apocalyptic number.

It is an amenable number.

136744001 is a deficient number, since it is larger than the sum of its proper divisors (1354003).

136744001 is a wasteful number, since it uses less digits than its factorization.

136744001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354002.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 136744001 is about 11693.7590619954. The cubic root of 136744001 is about 515.1923760514.

The spelling of 136744001 in words is "one hundred thirty-six million, seven hundred forty-four thousand, one".