163487801 has 2 divisors, whose sum is σ = 163487802. Its totient is φ = 163487800.

The previous prime is 163487771. The next prime is 163487803. The reversal of 163487801 is 108784361.

163487801 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., 124300201 + 39187600 = 11149^2 + 6260^2 .

It is a cyclic number.

It is not a de Polignac number, because 163487801 - 2²⁶ = 96378937 is a prime.

It is a super-2 number, since 2×163487801² = 53456522151631202, which contains 22 as substring.

Together with 163487803, 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 (163487803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81743900 + 81743901.

It is an arithmetic number, because the mean of its divisors is an integer number (81743901).

Almost surely, 2^163487801 is an apocalyptic number.

It is an amenable number.

163487801 is a deficient number, since it is larger than the sum of its proper divisors (1).

163487801 is an equidigital number, since it uses as much as digits as its factorization.

163487801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 163487801 is about 12786.2348249983. The cubic root of 163487801 is about 546.7999306198.

The spelling of 163487801 in words is "one hundred sixty-three million, four hundred eighty-seven thousand, eight hundred one".