202155023 has 8 divisors (see below), whose sum is σ = 231378048. Its totient is φ = 173017944.

The previous prime is 202154971. The next prime is 202155071. The reversal of 202155023 is 320551202.

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 202155023 - 2⁶ = 202154959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202154986 and 202155004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202125023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16361 + ... + 25922.

It is an arithmetic number, because the mean of its divisors is an integer number (28922256).

Almost surely, 2^202155023 is an apocalyptic number.

202155023 is a deficient number, since it is larger than the sum of its proper divisors (29223025).

202155023 is an equidigital number, since it uses as much as digits as its factorization.

202155023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42973.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 202155023 is about 14218.1230477162. The cubic root of 202155023 is about 586.8964901401.

The spelling of 202155023 in words is "two hundred two million, one hundred fifty-five thousand, twenty-three".