4245145061 has 2 divisors, whose sum is σ = 4245145062. Its totient is φ = 4245145060.

The previous prime is 4245145057. The next prime is 4245145063. The reversal of 4245145061 is 1605415424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2831836225 + 1413308836 = 53215^2 + 37594^2 .

It is a cyclic number.

It is not a de Polignac number, because 4245145061 - 2² = 4245145057 is a prime.

It is a super-3 number, since 3×4245145061³ (a number of 30 digits) contains 333 as substring.

Together with 4245145063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4245145063) 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, 2122572530 + 2122572531.

It is an arithmetic number, because the mean of its divisors is an integer number (2122572531).

Almost surely, 2^4245145061 is an apocalyptic number.

It is an amenable number.

4245145061 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245145061 is an equidigital number, since it uses as much as digits as its factorization.

4245145061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 4245145061 is about 65154.7777296493. Note that the first 4 decimals coincide. The cubic root of 4245145061 is about 1619.1888767004.

The spelling of 4245145061 in words is "four billion, two hundred forty-five million, one hundred forty-five thousand, sixty-one".