245401603 has 2 divisors, whose sum is σ = 245401604. Its totient is φ = 245401602.

The previous prime is 245401601. The next prime is 245401621. The reversal of 245401603 is 306104542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245401603 - 2¹ = 245401601 is a prime.

Together with 245401601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (245401601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122700801 + 122700802.

It is an arithmetic number, because the mean of its divisors is an integer number (122700802).

Almost surely, 2^245401603 is an apocalyptic number.

245401603 is a deficient number, since it is larger than the sum of its proper divisors (1).

245401603 is an equidigital number, since it uses as much as digits as its factorization.

245401603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 245401603 is about 15665.2993268562. The cubic root of 245401603 is about 626.0741872970.

The spelling of 245401603 in words is "two hundred forty-five million, four hundred one thousand, six hundred three".