20412541 has 2 divisors, whose sum is σ = 20412542. Its totient is φ = 20412540.

The previous prime is 20412503. The next prime is 20412559. The reversal of 20412541 is 14521402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17884441 + 2528100 = 4229^2 + 1590^2 .

It is a cyclic number.

It is not a de Polignac number, because 20412541 - 2²³ = 12023933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20419541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206270 + 10206271.

It is an arithmetic number, because the mean of its divisors is an integer number (10206271).

Almost surely, 2^20412541 is an apocalyptic number.

It is an amenable number.

20412541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412541 is an equidigital number, since it uses as much as digits as its factorization.

20412541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 20412541 is about 4518.0240149871. The cubic root of 20412541 is about 273.2954219017.

Adding to 20412541 its reverse (14521402), we get a palindrome (34933943).

The spelling of 20412541 in words is "twenty million, four hundred twelve thousand, five hundred forty-one".