245235304409 has 2 divisors, whose sum is σ = 245235304410. Its totient is φ = 245235304408.

The previous prime is 245235304399. The next prime is 245235304541. The reversal of 245235304409 is 904403532542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244451136400 + 784168009 = 494420^2 + 28003^2 .

It is a cyclic number.

It is not a de Polignac number, because 245235304409 - 2⁴ = 245235304393 is a prime.

It is not a weakly prime, because it can be changed into another prime (245235304009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122617652204 + 122617652205.

It is an arithmetic number, because the mean of its divisors is an integer number (122617652205).

Almost surely, 2^245235304409 is an apocalyptic number.

It is an amenable number.

245235304409 is a deficient number, since it is larger than the sum of its proper divisors (1).

245235304409 is an equidigital number, since it uses as much as digits as its factorization.

245235304409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 245235304409 in words is "two hundred forty-five billion, two hundred thirty-five million, three hundred four thousand, four hundred nine".