245061121 has 2 divisors, whose sum is σ = 245061122. Its totient is φ = 245061120.

The previous prime is 245061119. The next prime is 245061127. The reversal of 245061121 is 121160542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208398096 + 36663025 = 14436^2 + 6055^2 .

It is a cyclic number.

It is not a de Polignac number, because 245061121 - 2¹ = 245061119 is a prime.

Together with 245061119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 245061092 and 245061101.

It is not a weakly prime, because it can be changed into another prime (245061127) 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, 122530560 + 122530561.

It is an arithmetic number, because the mean of its divisors is an integer number (122530561).

Almost surely, 2^245061121 is an apocalyptic number.

It is an amenable number.

245061121 is a deficient number, since it is larger than the sum of its proper divisors (1).

245061121 is an equidigital number, since it uses as much as digits as its factorization.

245061121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 245061121 is about 15654.4281594698. The cubic root of 245061121 is about 625.7845047916.

The spelling of 245061121 in words is "two hundred forty-five million, sixty-one thousand, one hundred twenty-one".