245456147 has 2 divisors, whose sum is σ = 245456148. Its totient is φ = 245456146.

The previous prime is 245456143. The next prime is 245456153. The reversal of 245456147 is 741654542.

It is a happy number.

245456147 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 245456147 - 2² = 245456143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245456147.

It is not a weakly prime, because it can be changed into another prime (245456143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122728073 + 122728074.

It is an arithmetic number, because the mean of its divisors is an integer number (122728074).

Almost surely, 2^245456147 is an apocalyptic number.

245456147 is a deficient number, since it is larger than the sum of its proper divisors (1).

245456147 is an equidigital number, since it uses as much as digits as its factorization.

245456147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 38.

The square root of 245456147 is about 15667.0401480305. The cubic root of 245456147 is about 626.1205684946.

The spelling of 245456147 in words is "two hundred forty-five million, four hundred fifty-six thousand, one hundred forty-seven".