163130293 has 2 divisors, whose sum is σ = 163130294. Its totient is φ = 163130292.

The previous prime is 163130291. The next prime is 163130311. The reversal of 163130293 is 392031361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108118404 + 55011889 = 10398^2 + 7417^2 .

It is a cyclic number.

It is not a de Polignac number, because 163130293 - 2¹ = 163130291 is a prime.

It is a super-2 number, since 2×163130293² = 53222984988531698, which contains 22 as substring.

Together with 163130291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163130291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81565146 + 81565147.

It is an arithmetic number, because the mean of its divisors is an integer number (81565147).

Almost surely, 2^163130293 is an apocalyptic number.

It is an amenable number.

163130293 is a deficient number, since it is larger than the sum of its proper divisors (1).

163130293 is an equidigital number, since it uses as much as digits as its factorization.

163130293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 163130293 is about 12772.2469832054. The cubic root of 163130293 is about 546.4010669845.

The spelling of 163130293 in words is "one hundred sixty-three million, one hundred thirty thousand, two hundred ninety-three".