163303957 has 2 divisors, whose sum is σ = 163303958. Its totient is φ = 163303956.

The previous prime is 163303937. The next prime is 163304039. The reversal of 163303957 is 759303361.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163175076 + 128881 = 12774^2 + 359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163303957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163303927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81651978 + 81651979.

It is an arithmetic number, because the mean of its divisors is an integer number (81651979).

Almost surely, 2^163303957 is an apocalyptic number.

It is an amenable number.

163303957 is a deficient number, since it is larger than the sum of its proper divisors (1).

163303957 is an equidigital number, since it uses as much as digits as its factorization.

163303957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 163303957 is about 12779.0436653139. The cubic root of 163303957 is about 546.5948927103.

The spelling of 163303957 in words is "one hundred sixty-three million, three hundred three thousand, nine hundred fifty-seven".