236220401 has 2 divisors, whose sum is σ = 236220402. Its totient is φ = 236220400.

The previous prime is 236220343. The next prime is 236220443. The reversal of 236220401 is 104022632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135117376 + 101103025 = 11624^2 + 10055^2 .

It is a cyclic number.

It is not a de Polignac number, because 236220401 - 2²² = 232026097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (236220461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118110200 + 118110201.

It is an arithmetic number, because the mean of its divisors is an integer number (118110201).

Almost surely, 2^236220401 is an apocalyptic number.

It is an amenable number.

236220401 is a deficient number, since it is larger than the sum of its proper divisors (1).

236220401 is an equidigital number, since it uses as much as digits as its factorization.

236220401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 236220401 is about 15369.4632632373. The cubic root of 236220401 is about 618.1669767663.

The spelling of 236220401 in words is "two hundred thirty-six million, two hundred twenty thousand, four hundred one".