252194447 has 2 divisors, whose sum is σ = 252194448. Its totient is φ = 252194446.

The previous prime is 252194443. The next prime is 252194461. The reversal of 252194447 is 744491252.

252194447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252194447 - 2² = 252194443 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252194447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252194443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126097223 + 126097224.

It is an arithmetic number, because the mean of its divisors is an integer number (126097224).

Almost surely, 2^252194447 is an apocalyptic number.

252194447 is a deficient number, since it is larger than the sum of its proper divisors (1).

252194447 is an equidigital number, since it uses as much as digits as its factorization.

252194447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 252194447 is about 15880.6311902267. The cubic root of 252194447 is about 631.7983779418.

The spelling of 252194447 in words is "two hundred fifty-two million, one hundred ninety-four thousand, four hundred forty-seven".