20293135 has 8 divisors (see below), whose sum is σ = 24457680. Its totient is φ = 16163904.

The previous prime is 20293111. The next prime is 20293139. The reversal of 20293135 is 53139202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20293135 - 2⁵ = 20293103 is a prime.

It is a super-2 number, since 2×20293135² = 823622656256450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20293139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7545 + ... + 9874.

It is an arithmetic number, because the mean of its divisors is an integer number (3057210).

Almost surely, 2^20293135 is an apocalyptic number.

20293135 is a deficient number, since it is larger than the sum of its proper divisors (4164545).

20293135 is a wasteful number, since it uses less digits than its factorization.

20293135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17657.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 20293135 is about 4504.7902281904. The cubic root of 20293135 is about 272.7614862296.

The spelling of 20293135 in words is "twenty million, two hundred ninety-three thousand, one hundred thirty-five".