245287741 has 2 divisors, whose sum is σ = 245287742. Its totient is φ = 245287740.

The previous prime is 245287729. The next prime is 245287759. The reversal of 245287741 is 147782542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140327716 + 104960025 = 11846^2 + 10245^2 .

It is a cyclic number.

It is not a de Polignac number, because 245287741 - 2¹¹ = 245285693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245287694 and 245287703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245287241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122643870 + 122643871.

It is an arithmetic number, because the mean of its divisors is an integer number (122643871).

Almost surely, 2^245287741 is an apocalyptic number.

It is an amenable number.

245287741 is a deficient number, since it is larger than the sum of its proper divisors (1).

245287741 is an equidigital number, since it uses as much as digits as its factorization.

245287741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125440, while the sum is 40.

The square root of 245287741 is about 15661.6646944059. The cubic root of 245287741 is about 625.9773432038.

The spelling of 245287741 in words is "two hundred forty-five million, two hundred eighty-seven thousand, seven hundred forty-one".