163123357 has 2 divisors, whose sum is σ = 163123358. Its totient is φ = 163123356.

The previous prime is 163123351. The next prime is 163123369. The reversal of 163123357 is 753321361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126023076 + 37100281 = 11226^2 + 6091^2 .

It is a cyclic number.

It is not a de Polignac number, because 163123357 - 2³ = 163123349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163123351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81561678 + 81561679.

It is an arithmetic number, because the mean of its divisors is an integer number (81561679).

Almost surely, 2^163123357 is an apocalyptic number.

It is an amenable number.

163123357 is a deficient number, since it is larger than the sum of its proper divisors (1).

163123357 is an equidigital number, since it uses as much as digits as its factorization.

163123357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 163123357 is about 12771.9754540948. The cubic root of 163123357 is about 546.3933228853.

The spelling of 163123357 in words is "one hundred sixty-three million, one hundred twenty-three thousand, three hundred fifty-seven".