163461457 has 2 divisors, whose sum is σ = 163461458. Its totient is φ = 163461456.

The previous prime is 163461401. The next prime is 163461461. The reversal of 163461457 is 754164361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124010496 + 39450961 = 11136^2 + 6281^2 .

It is a cyclic number.

It is not a de Polignac number, because 163461457 - 2¹⁵ = 163428689 is a prime.

It is not a weakly prime, because it can be changed into another prime (163461757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81730728 + 81730729.

It is an arithmetic number, because the mean of its divisors is an integer number (81730729).

Almost surely, 2^163461457 is an apocalyptic number.

It is an amenable number.

163461457 is a deficient number, since it is larger than the sum of its proper divisors (1).

163461457 is an equidigital number, since it uses as much as digits as its factorization.

163461457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 163461457 is about 12785.2046131456. The cubic root of 163461457 is about 546.7705590682.

The spelling of 163461457 in words is "one hundred sixty-three million, four hundred sixty-one thousand, four hundred fifty-seven".