20163741 has 16 divisors (see below), whose sum is σ = 29245440. Its totient is φ = 12283200.

The previous prime is 20163739. The next prime is 20163749. The reversal of 20163741 is 14736102.

It is not a de Polignac number, because 20163741 - 2¹ = 20163739 is a prime.

It is a super-2 number, since 2×20163741² = 813152902230162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380 + ... + 6498.

It is an arithmetic number, because the mean of its divisors is an integer number (1827840).

Almost surely, 2^20163741 is an apocalyptic number.

It is an amenable number.

20163741 is a deficient number, since it is larger than the sum of its proper divisors (9081699).

20163741 is a wasteful number, since it uses less digits than its factorization.

20163741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20163741 is about 4490.4054382650. The cubic root of 20163741 is about 272.1805183248.

Adding to 20163741 its reverse (14736102), we get a palindrome (34899843).

The spelling of 20163741 in words is "twenty million, one hundred sixty-three thousand, seven hundred forty-one".