245547427 has 2 divisors, whose sum is σ = 245547428. Its totient is φ = 245547426.

The previous prime is 245547413. The next prime is 245547521. The reversal of 245547427 is 724745542.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245547427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245547427.

It is not a weakly prime, because it can be changed into another prime (245247427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122773713 + 122773714.

It is an arithmetic number, because the mean of its divisors is an integer number (122773714).

Almost surely, 2^245547427 is an apocalyptic number.

245547427 is a deficient number, since it is larger than the sum of its proper divisors (1).

245547427 is an equidigital number, since it uses as much as digits as its factorization.

245547427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 313600, while the sum is 40.

The square root of 245547427 is about 15669.9529992914. The cubic root of 245547427 is about 626.1981725841.

The spelling of 245547427 in words is "two hundred forty-five million, five hundred forty-seven thousand, four hundred twenty-seven".