245233302581 has 2 divisors, whose sum is σ = 245233302582. Its totient is φ = 245233302580.

The previous prime is 245233302529. The next prime is 245233302599. The reversal of 245233302581 is 185203332542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234590079025 + 10643223556 = 484345^2 + 103166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245233302581 is a prime.

It is a super-2 number, since 2×245233302581² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245233392581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122616651290 + 122616651291.

It is an arithmetic number, because the mean of its divisors is an integer number (122616651291).

Almost surely, 2^245233302581 is an apocalyptic number.

It is an amenable number.

245233302581 is a deficient number, since it is larger than the sum of its proper divisors (1).

245233302581 is an equidigital number, since it uses as much as digits as its factorization.

245233302581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 245233302581 in words is "two hundred forty-five billion, two hundred thirty-three million, three hundred two thousand, five hundred eighty-one".