20733141 has 32 divisors (see below), whose sum is σ = 33546240. Its totient is φ = 11217600.

The previous prime is 20733137. The next prime is 20733191. The reversal of 20733141 is 14133702.

It is not a de Polignac number, because 20733141 - 2² = 20733137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20733121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12520 + ... + 14078.

It is an arithmetic number, because the mean of its divisors is an integer number (1048320).

Almost surely, 2^20733141 is an apocalyptic number.

It is an amenable number.

20733141 is a deficient number, since it is larger than the sum of its proper divisors (12813099).

20733141 is a wasteful number, since it uses less digits than its factorization.

20733141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20733141 is about 4553.3658978826. The cubic root of 20733141 is about 274.7187913284.

Adding to 20733141 its reverse (14133702), we get a palindrome (34866843).

The spelling of 20733141 in words is "twenty million, seven hundred thirty-three thousand, one hundred forty-one".