136925729 has 8 divisors (see below), whose sum is σ = 141941760. Its totient is φ = 131947200.

The previous prime is 136925687. The next prime is 136925749. The reversal of 136925729 is 927529631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136925729 - 2²⁴ = 120148513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136925729.

It is not an unprimeable number, because it can be changed into a prime (136925749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832 + ... + 16649.

It is an arithmetic number, because the mean of its divisors is an integer number (17742720).

Almost surely, 2^136925729 is an apocalyptic number.

It is an amenable number.

136925729 is a deficient number, since it is larger than the sum of its proper divisors (5016031).

136925729 is a wasteful number, since it uses less digits than its factorization.

136925729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751.

The product of its digits is 204120, while the sum is 44.

The square root of 136925729 is about 11701.5267807240. The cubic root of 136925729 is about 515.4204992482.

The spelling of 136925729 in words is "one hundred thirty-six million, nine hundred twenty-five thousand, seven hundred twenty-nine".