263120983 has 2 divisors, whose sum is σ = 263120984. Its totient is φ = 263120982.

The previous prime is 263120971. The next prime is 263121029. The reversal of 263120983 is 389021362.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263120983 is a prime.

It is equal to p_14357149 and since 263120983 and 14357149 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263121983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131560491 + 131560492.

It is an arithmetic number, because the mean of its divisors is an integer number (131560492).

Almost surely, 2^263120983 is an apocalyptic number.

263120983 is a deficient number, since it is larger than the sum of its proper divisors (1).

263120983 is an equidigital number, since it uses as much as digits as its factorization.

263120983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 263120983 is about 16221.0043770415. The cubic root of 263120983 is about 640.7940851258.

The spelling of 263120983 in words is "two hundred sixty-three million, one hundred twenty thousand, nine hundred eighty-three".