163003457 has 2 divisors, whose sum is σ = 163003458. Its totient is φ = 163003456.

The previous prime is 163003439. The next prime is 163003459. The reversal of 163003457 is 754300361.

163003457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104878081 + 58125376 = 10241^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 163003457 - 2²² = 158809153 is a prime.

Together with 163003459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163003459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81501728 + 81501729.

It is an arithmetic number, because the mean of its divisors is an integer number (81501729).

Almost surely, 2^163003457 is an apocalyptic number.

It is an amenable number.

163003457 is a deficient number, since it is larger than the sum of its proper divisors (1).

163003457 is an equidigital number, since it uses as much as digits as its factorization.

163003457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 163003457 is about 12767.2807206547. The cubic root of 163003457 is about 546.2594188707.

The spelling of 163003457 in words is "one hundred sixty-three million, three thousand, four hundred fifty-seven".