202424155 has 4 divisors (see below), whose sum is σ = 242908992. Its totient is φ = 161939320.

The previous prime is 202424143. The next prime is 202424179. The reversal of 202424155 is 551424202.

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

It is not a de Polignac number, because 202424155 - 2¹¹ = 202422107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20242411 + ... + 20242420.

It is an arithmetic number, because the mean of its divisors is an integer number (60727248).

Almost surely, 2^202424155 is an apocalyptic number.

202424155 is a deficient number, since it is larger than the sum of its proper divisors (40484837).

202424155 is an equidigital number, since it uses as much as digits as its factorization.

202424155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40484836.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 202424155 is about 14227.5842995218. The cubic root of 202424155 is about 587.1568226657.

Adding to 202424155 its reverse (551424202), we get a palindrome (753848357).

The spelling of 202424155 in words is "two hundred two million, four hundred twenty-four thousand, one hundred fifty-five".