4378513241 has 2 divisors, whose sum is σ = 4378513242. Its totient is φ = 4378513240.

The previous prime is 4378513163. The next prime is 4378513247. The reversal of 4378513241 is 1423158734.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4013856025 + 364657216 = 63355^2 + 19096^2 .

It is a cyclic number.

It is not a de Polignac number, because 4378513241 - 2²² = 4374318937 is a prime.

It is a super-2 number, since 2×4378513241² = 38342756403224648162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4378513195 and 4378513204.

It is not a weakly prime, because it can be changed into another prime (4378513247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2189256620 + 2189256621.

It is an arithmetic number, because the mean of its divisors is an integer number (2189256621).

Almost surely, 2^4378513241 is an apocalyptic number.

It is an amenable number.

4378513241 is a deficient number, since it is larger than the sum of its proper divisors (1).

4378513241 is an equidigital number, since it uses as much as digits as its factorization.

4378513241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 4378513241 is about 66170.3350528014. The cubic root of 4378513241 is about 1635.9708301232.

The spelling of 4378513241 in words is "four billion, three hundred seventy-eight million, five hundred thirteen thousand, two hundred forty-one".