20133413 has 2 divisors, whose sum is σ = 20133414. Its totient is φ = 20133412.

The previous prime is 20133401. The next prime is 20133431. The reversal of 20133413 is 31433102.

It is a happy number.

Together with next prime (20133431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19775809 + 357604 = 4447^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133413 - 2⁴ = 20133397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20133391 and 20133400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066706 + 10066707.

It is an arithmetic number, because the mean of its divisors is an integer number (10066707).

Almost surely, 2^20133413 is an apocalyptic number.

It is an amenable number.

20133413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133413 is an equidigital number, since it uses as much as digits as its factorization.

20133413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 20133413 is about 4487.0271895766. The cubic root of 20133413 is about 272.0439888847.

Adding to 20133413 its reverse (31433102), we get a palindrome (51566515).

The spelling of 20133413 in words is "twenty million, one hundred thirty-three thousand, four hundred thirteen".