20430141 has 16 divisors (see below), whose sum is σ = 30098304. Its totient is φ = 12260864.

The previous prime is 20430131. The next prime is 20430143. The reversal of 20430141 is 14103402.

It is a cyclic number.

It is not a de Polignac number, because 20430141 - 2⁶ = 20430077 is a prime.

It is a super-2 number, since 2×20430141² = 834781322559762, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20430141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7536 + ... + 9881.

It is an arithmetic number, because the mean of its divisors is an integer number (1881144).

Almost surely, 2^20430141 is an apocalyptic number.

It is an amenable number.

20430141 is a deficient number, since it is larger than the sum of its proper divisors (9668163).

20430141 is a wasteful number, since it uses less digits than its factorization.

20430141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17460.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20430141 is about 4519.9713494667. The cubic root of 20430141 is about 273.3739458129.

Adding to 20430141 its reverse (14103402), we get a palindrome (34533543).

The spelling of 20430141 in words is "twenty million, four hundred thirty thousand, one hundred forty-one".