243101401 has 4 divisors (see below), whose sum is σ = 243453904. Its totient is φ = 242748900.

The previous prime is 243101389. The next prime is 243101429. The reversal of 243101401 is 104101342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243101401 - 2⁹ = 243100889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243101471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175215 + ... + 176596.

It is an arithmetic number, because the mean of its divisors is an integer number (60863476).

Almost surely, 2^243101401 is an apocalyptic number.

It is an amenable number.

243101401 is a deficient number, since it is larger than the sum of its proper divisors (352503).

243101401 is an equidigital number, since it uses as much as digits as its factorization.

243101401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352502.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 243101401 is about 15591.7093674812. The cubic root of 243101401 is about 624.1119342604. Note that the first 3 decimals are identical.

Adding to 243101401 its reverse (104101342), we get a palindrome (347202743).

The spelling of 243101401 in words is "two hundred forty-three million, one hundred one thousand, four hundred one".