245007947 has 2 divisors, whose sum is σ = 245007948. Its totient is φ = 245007946.

The previous prime is 245007899. The next prime is 245007953. The reversal of 245007947 is 749700542.

245007947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245007947 - 2⁸ = 245007691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245007947.

It is not a weakly prime, because it can be changed into another prime (245007967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122503973 + 122503974.

It is an arithmetic number, because the mean of its divisors is an integer number (122503974).

Almost surely, 2^245007947 is an apocalyptic number.

245007947 is a deficient number, since it is larger than the sum of its proper divisors (1).

245007947 is an equidigital number, since it uses as much as digits as its factorization.

245007947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 245007947 is about 15652.7296980431. The cubic root of 245007947 is about 625.7392400672.

The spelling of 245007947 in words is "two hundred forty-five million, seven thousand, nine hundred forty-seven".