20133401 has 2 divisors, whose sum is σ = 20133402. Its totient is φ = 20133400.

The previous prime is 20133397. The next prime is 20133413. The reversal of 20133401 is 10433102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 63001 = 4480^2 + 251^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133401 - 2² = 20133397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20133431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066700 + 10066701.

It is an arithmetic number, because the mean of its divisors is an integer number (10066701).

Almost surely, 2^20133401 is an apocalyptic number.

It is an amenable number.

20133401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133401 is an equidigital number, since it uses as much as digits as its factorization.

20133401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20133401 is about 4487.0258523882. The cubic root of 20133401 is about 272.0439348364.

Adding to 20133401 its reverse (10433102), we get a palindrome (30566503).

The spelling of 20133401 in words is "twenty million, one hundred thirty-three thousand, four hundred one".