20155343 has 8 divisors (see below), whose sum is σ = 22292928. Its totient is φ = 18101664.

The previous prime is 20155327. The next prime is 20155357. The reversal of 20155343 is 34355102.

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 20155343 - 2⁴ = 20155327 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20155643) 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, 20471 + ... + 21432.

It is an arithmetic number, because the mean of its divisors is an integer number (2786616).

Almost surely, 2^20155343 is an apocalyptic number.

20155343 is a deficient number, since it is larger than the sum of its proper divisors (2137585).

20155343 is a wasteful number, since it uses less digits than its factorization.

20155343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41953.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 20155343 is about 4489.4702360078. The cubic root of 20155343 is about 272.1427262405.

The spelling of 20155343 in words is "twenty million, one hundred fifty-five thousand, three hundred forty-three".