263080109 has 2 divisors, whose sum is σ = 263080110. Its totient is φ = 263080108.

The previous prime is 263080093. The next prime is 263080127. The reversal of 263080109 is 901080362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256704484 + 6375625 = 16022^2 + 2525^2 .

It is a cyclic number.

It is not a de Polignac number, because 263080109 - 2⁴ = 263080093 is a prime.

It is a super-2 number, since 2×263080109² = 138422287502903762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263080309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131540054 + 131540055.

It is an arithmetic number, because the mean of its divisors is an integer number (131540055).

Almost surely, 2^263080109 is an apocalyptic number.

It is an amenable number.

263080109 is a deficient number, since it is larger than the sum of its proper divisors (1).

263080109 is an equidigital number, since it uses as much as digits as its factorization.

263080109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 263080109 is about 16219.7444184549. The cubic root of 263080109 is about 640.7609024513.

The spelling of 263080109 in words is "two hundred sixty-three million, eighty thousand, one hundred nine".