202155388 has 6 divisors (see below), whose sum is σ = 353771936. Its totient is φ = 101077692.

The previous prime is 202155377. The next prime is 202155397. The reversal of 202155388 is 883551202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25269420 + ... + 25269427.

Almost surely, 2^202155388 is an apocalyptic number.

It is an amenable number.

202155388 is a deficient number, since it is larger than the sum of its proper divisors (151616548).

202155388 is a wasteful number, since it uses less digits than its factorization.

202155388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50538851 (or 50538849 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 202155388 is about 14218.1358834413. The cubic root of 202155388 is about 586.8968433626.

The spelling of 202155388 in words is "two hundred two million, one hundred fifty-five thousand, three hundred eighty-eight".