245513377 has 2 divisors, whose sum is σ = 245513378. Its totient is φ = 245513376.

The previous prime is 245513369. The next prime is 245513407. The reversal of 245513377 is 773315542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179318881 + 66194496 = 13391^2 + 8136^2 .

It is a cyclic number.

It is not a de Polignac number, because 245513377 - 2³ = 245513369 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245513327) 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, 122756688 + 122756689.

It is an arithmetic number, because the mean of its divisors is an integer number (122756689).

Almost surely, 2^245513377 is an apocalyptic number.

It is an amenable number.

245513377 is a deficient number, since it is larger than the sum of its proper divisors (1).

245513377 is an equidigital number, since it uses as much as digits as its factorization.

245513377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 37.

The square root of 245513377 is about 15668.8664874011. The cubic root of 245513377 is about 626.1692263317.

The spelling of 245513377 in words is "two hundred forty-five million, five hundred thirteen thousand, three hundred seventy-seven".