245530111 has 2 divisors, whose sum is σ = 245530112. Its totient is φ = 245530110.

The previous prime is 245530081. The next prime is 245530121. The reversal of 245530111 is 111035542.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245530111 - 2¹³ = 245521919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245530121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122765055 + 122765056.

It is an arithmetic number, because the mean of its divisors is an integer number (122765056).

Almost surely, 2^245530111 is an apocalyptic number.

245530111 is a deficient number, since it is larger than the sum of its proper divisors (1).

245530111 is an equidigital number, since it uses as much as digits as its factorization.

245530111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 245530111 is about 15669.4004671525. The cubic root of 245530111 is about 626.1834524102.

Adding to 245530111 its reverse (111035542), we get a palindrome (356565653).

The spelling of 245530111 in words is "two hundred forty-five million, five hundred thirty thousand, one hundred eleven".