263061473 has 2 divisors, whose sum is σ = 263061474. Its totient is φ = 263061472.

The previous prime is 263061439. The next prime is 263061481. The reversal of 263061473 is 374160362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189667984 + 73393489 = 13772^2 + 8567^2 .

It is a cyclic number.

It is not a de Polignac number, because 263061473 - 2⁸ = 263061217 is a prime.

It is equal to p_14354078 and since 263061473 and 14354078 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (263061433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131530736 + 131530737.

It is an arithmetic number, because the mean of its divisors is an integer number (131530737).

Almost surely, 2^263061473 is an apocalyptic number.

It is an amenable number.

263061473 is a deficient number, since it is larger than the sum of its proper divisors (1).

263061473 is an equidigital number, since it uses as much as digits as its factorization.

263061473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 263061473 is about 16219.1699232729. The cubic root of 263061473 is about 640.7457720763.

The spelling of 263061473 in words is "two hundred sixty-three million, sixty-one thousand, four hundred seventy-three".