201434555 has 16 divisors (see below), whose sum is σ = 280938240. Its totient is φ = 135784032.

The previous prime is 201434543. The next prime is 201434587. The reversal of 201434555 is 555434102.

It is a cyclic number.

It is not a de Polignac number, because 201434555 - 2²⁰ = 200385979 is a prime.

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 in 15 ways as a sum of consecutive naturals, for example, 46709 + ... + 50838.

It is an arithmetic number, because the mean of its divisors is an integer number (17558640).

Almost surely, 2^201434555 is an apocalyptic number.

201434555 is a deficient number, since it is larger than the sum of its proper divisors (79503685).

201434555 is an equidigital number, since it uses as much as digits as its factorization.

201434555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97618.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 201434555 is about 14192.7641775660. The cubic root of 201434555 is about 586.1984392804.

Adding to 201434555 its reverse (555434102), we get a palindrome (756868657).

The spelling of 201434555 in words is "two hundred one million, four hundred thirty-four thousand, five hundred fifty-five".