2136729 has 8 divisors (see below), whose sum is σ = 3256000. Its totient is φ = 1220976.

The previous prime is 2136707. The next prime is 2136731. The reversal of 2136729 is 9276312.

2136729 = 336² + 337² + ... + 353².

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

It is not a de Polignac number, because 2136729 - 2⁷ = 2136601 is a prime.

It is a super-2 number, since 2×2136729² = 9131221638882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

2136729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2136696 and 2136705.

It is not an unprimeable number, because it can be changed into a prime (2136779) 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, 50854 + ... + 50895.

It is an arithmetic number, because the mean of its divisors is an integer number (407000).

2^2136729 is an apocalyptic number.

It is an amenable number.

2136729 is a deficient number, since it is larger than the sum of its proper divisors (1119271).

2136729 is a wasteful number, since it uses less digits than its factorization.

2136729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101759.

The product of its digits is 4536, while the sum is 30.

The square root of 2136729 is about 1461.7554515034. The cubic root of 2136729 is about 128.8001834096.

The spelling of 2136729 in words is "two million, one hundred thirty-six thousand, seven hundred twenty-nine".