2045217479 has 2 divisors, whose sum is σ = 2045217480. Its totient is φ = 2045217478.

The previous prime is 2045217413. The next prime is 2045217509. The reversal of 2045217479 is 9747125402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2045217479 - 2¹⁶ = 2045151943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045217379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022608739 + 1022608740.

It is an arithmetic number, because the mean of its divisors is an integer number (1022608740).

Almost surely, 2^2045217479 is an apocalyptic number.

2045217479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045217479 is an equidigital number, since it uses as much as digits as its factorization.

2045217479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 2045217479 is about 45224.0807424540. The cubic root of 2045217479 is about 1269.3454537291.

The spelling of 2045217479 in words is "two billion, forty-five million, two hundred seventeen thousand, four hundred seventy-nine".