245030381 has 2 divisors, whose sum is σ = 245030382. Its totient is φ = 245030380.

The previous prime is 245030353. The next prime is 245030389. The reversal of 245030381 is 183030542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150454756 + 94575625 = 12266^2 + 9725^2 .

It is a cyclic number.

It is not a de Polignac number, because 245030381 - 2¹⁰ = 245029357 is a prime.

It is a super-2 number, since 2×245030381² = 120079775226010322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245030381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245030389) 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, 122515190 + 122515191.

It is an arithmetic number, because the mean of its divisors is an integer number (122515191).

Almost surely, 2^245030381 is an apocalyptic number.

It is an amenable number.

245030381 is a deficient number, since it is larger than the sum of its proper divisors (1).

245030381 is an equidigital number, since it uses as much as digits as its factorization.

245030381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 245030381 is about 15653.4462978604. The cubic root of 245030381 is about 625.7583379589.

The spelling of 245030381 in words is "two hundred forty-five million, thirty thousand, three hundred eighty-one".