20150135 has 16 divisors (see below), whose sum is σ = 24729600. Its totient is φ = 15758496.

The previous prime is 20150131. The next prime is 20150153. The reversal of 20150135 is 53105102.

20150135 = 26² + 27² + ... + 392².

It is a cyclic number.

It is not a de Polignac number, because 20150135 - 2² = 20150131 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54722 + ... + 55088.

It is an arithmetic number, because the mean of its divisors is an integer number (1545600).

Almost surely, 2^20150135 is an apocalyptic number.

20150135 is a deficient number, since it is larger than the sum of its proper divisors (4579465).

20150135 is a wasteful number, since it uses less digits than its factorization.

20150135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 20150135 is about 4488.8901746423. The cubic root of 20150135 is about 272.1192842941.

Adding to 20150135 its reverse (53105102), we get a palindrome (73255237).

The spelling of 20150135 in words is "twenty million, one hundred fifty thousand, one hundred thirty-five".