245214791 has 2 divisors, whose sum is σ = 245214792. Its totient is φ = 245214790.

The previous prime is 245214787. The next prime is 245214821. The reversal of 245214791 is 197412542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245214791 - 2² = 245214787 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245214731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122607395 + 122607396.

It is an arithmetic number, because the mean of its divisors is an integer number (122607396).

Almost surely, 2^245214791 is an apocalyptic number.

245214791 is a deficient number, since it is larger than the sum of its proper divisors (1).

245214791 is an equidigital number, since it uses as much as digits as its factorization.

245214791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 245214791 is about 15659.3355861607. The cubic root of 245214791 is about 625.9152806173.

The spelling of 245214791 in words is "two hundred forty-five million, two hundred fourteen thousand, seven hundred ninety-one".