20135337 has 8 divisors (see below), whose sum is σ = 27713280. Its totient is φ = 12990480.

The previous prime is 20135333. The next prime is 20135341. The reversal of 20135337 is 73353102.

It is an interprime number because it is at equal distance from previous prime (20135333) and next prime (20135341).

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

It is not a de Polignac number, because 20135337 - 2² = 20135333 is a prime.

It is a super-2 number, since 2×20135337² = 810863592207138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20135333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108162 + ... + 108347.

It is an arithmetic number, because the mean of its divisors is an integer number (3464160).

Almost surely, 2^20135337 is an apocalyptic number.

It is an amenable number.

20135337 is a deficient number, since it is larger than the sum of its proper divisors (7577943).

20135337 is a wasteful number, since it uses less digits than its factorization.

20135337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216543.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 20135337 is about 4487.2415803030. The cubic root of 20135337 is about 272.0526543465.

Adding to 20135337 its reverse (73353102), we get a palindrome (93488439).

The spelling of 20135337 in words is "twenty million, one hundred thirty-five thousand, three hundred thirty-seven".