163454257 has 2 divisors, whose sum is σ = 163454258. Its totient is φ = 163454256.

The previous prime is 163454233. The next prime is 163454267. The reversal of 163454257 is 752454361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94497841 + 68956416 = 9721^2 + 8304^2 .

It is a cyclic number.

It is not a de Polignac number, because 163454257 - 2⁷ = 163454129 is a prime.

It is not a weakly prime, because it can be changed into another prime (163454267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81727128 + 81727129.

It is an arithmetic number, because the mean of its divisors is an integer number (81727129).

Almost surely, 2^163454257 is an apocalyptic number.

It is an amenable number.

163454257 is a deficient number, since it is larger than the sum of its proper divisors (1).

163454257 is an equidigital number, since it uses as much as digits as its factorization.

163454257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 37.

The square root of 163454257 is about 12784.9230345747. The cubic root of 163454257 is about 546.7625310680.

It can be divided in two parts, 16345 and 4257, that added together give a palindrome (20602).

The spelling of 163454257 in words is "one hundred sixty-three million, four hundred fifty-four thousand, two hundred fifty-seven".