20463135 has 48 divisors (see below), whose sum is σ = 41565312. Its totient is φ = 8500800.

The previous prime is 20463119. The next prime is 20463137. The reversal of 20463135 is 53136402.

It is a happy number.

It is not a de Polignac number, because 20463135 - 2⁴ = 20463119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20463137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6820 + ... + 9350.

It is an arithmetic number, because the mean of its divisors is an integer number (865944).

Almost surely, 2^20463135 is an apocalyptic number.

20463135 is an abundant number, since it is smaller than the sum of its proper divisors (21102177).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20463135 is a wasteful number, since it uses less digits than its factorization.

20463135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2557 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20463135 is about 4523.6196789739. The cubic root of 20463135 is about 273.5210299473.

Adding to 20463135 its reverse (53136402), we get a palindrome (73599537).

The spelling of 20463135 in words is "twenty million, four hundred sixty-three thousand, one hundred thirty-five".