245222071 has 2 divisors, whose sum is σ = 245222072. Its totient is φ = 245222070.

The previous prime is 245222063. The next prime is 245222119. The reversal of 245222071 is 170222542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245222071 - 2³ = 245222063 is a prime.

It is equal to p_13432156 and since 245222071 and 13432156 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245222371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122611035 + 122611036.

It is an arithmetic number, because the mean of its divisors is an integer number (122611036).

Almost surely, 2^245222071 is an apocalyptic number.

245222071 is a deficient number, since it is larger than the sum of its proper divisors (1).

245222071 is an equidigital number, since it uses as much as digits as its factorization.

245222071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 245222071 is about 15659.5680336336. The cubic root of 245222071 is about 625.9214746674.

The spelling of 245222071 in words is "two hundred forty-five million, two hundred twenty-two thousand, seventy-one".