245054389 has 2 divisors, whose sum is σ = 245054390. Its totient is φ = 245054388.

The previous prime is 245054261. The next prime is 245054393. The reversal of 245054389 is 983450542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148425489 + 96628900 = 12183^2 + 9830^2 .

It is a cyclic number.

It is not a de Polignac number, because 245054389 - 2⁷ = 245054261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245052389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122527194 + 122527195.

It is an arithmetic number, because the mean of its divisors is an integer number (122527195).

Almost surely, 2^245054389 is an apocalyptic number.

It is an amenable number.

245054389 is a deficient number, since it is larger than the sum of its proper divisors (1).

245054389 is an equidigital number, since it uses as much as digits as its factorization.

245054389 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 40.

The square root of 245054389 is about 15654.2131389604. The cubic root of 245054389 is about 625.7787744934.

The spelling of 245054389 in words is "two hundred forty-five million, fifty-four thousand, three hundred eighty-nine".