20354413 has 2 divisors, whose sum is σ = 20354414. Its totient is φ = 20354412.

The previous prime is 20354393. The next prime is 20354441. The reversal of 20354413 is 31445302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19474569 + 879844 = 4413^2 + 938^2 .

It is a cyclic number.

It is not a de Polignac number, because 20354413 - 2⁵ = 20354381 is a prime.

It is equal to p_1291630 and since 20354413 and 1291630 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20354483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10177206 + 10177207.

It is an arithmetic number, because the mean of its divisors is an integer number (10177207).

Almost surely, 2^20354413 is an apocalyptic number.

It is an amenable number.

20354413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20354413 is an equidigital number, since it uses as much as digits as its factorization.

20354413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20354413 is about 4511.5865280409. The cubic root of 20354413 is about 273.0357576817.

Adding to 20354413 its reverse (31445302), we get a palindrome (51799715).

The spelling of 20354413 in words is "twenty million, three hundred fifty-four thousand, four hundred thirteen".