43100401 has 2 divisors, whose sum is σ = 43100402. Its totient is φ = 43100400.

The previous prime is 43100381. The next prime is 43100411. The reversal of 43100401 is 10400134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32764176 + 10336225 = 5724^2 + 3215^2 .

It is a cyclic number.

It is not a de Polignac number, because 43100401 - 2²⁵ = 9545969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43100411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21550200 + 21550201.

It is an arithmetic number, because the mean of its divisors is an integer number (21550201).

Almost surely, 2^43100401 is an apocalyptic number.

It is an amenable number.

43100401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43100401 is an equidigital number, since it uses as much as digits as its factorization.

43100401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 43100401 is about 6565.0895652687. The cubic root of 43100401 is about 350.6122643794.

Adding to 43100401 its reverse (10400134), we get a palindrome (53500535).

The spelling of 43100401 in words is "forty-three million, one hundred thousand, four hundred one".