202103155 has 16 divisors (see below), whose sum is σ = 246900384. Its totient is φ = 158780160.

The previous prime is 202103141. The next prime is 202103173. The reversal of 202103155 is 551301202.

It is not a de Polignac number, because 202103155 - 2⁹ = 202102643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140319 + ... + 141751.

It is an arithmetic number, because the mean of its divisors is an integer number (15431274).

Almost surely, 2^202103155 is an apocalyptic number.

202103155 is a deficient number, since it is larger than the sum of its proper divisors (44797229).

202103155 is a wasteful number, since it uses less digits than its factorization.

202103155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 202103155 is about 14216.2989206052. The cubic root of 202103155 is about 586.8462914517.

Adding to 202103155 its reverse (551301202), we get a palindrome (753404357).

The spelling of 202103155 in words is "two hundred two million, one hundred three thousand, one hundred fifty-five".