163494077 has 2 divisors, whose sum is σ = 163494078. Its totient is φ = 163494076.

The previous prime is 163494073. The next prime is 163494103. The reversal of 163494077 is 770494361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150454756 + 13039321 = 12266^2 + 3611^2 .

It is a cyclic number.

It is not a de Polignac number, because 163494077 - 2² = 163494073 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163494073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81747038 + 81747039.

It is an arithmetic number, because the mean of its divisors is an integer number (81747039).

Almost surely, 2^163494077 is an apocalyptic number.

It is an amenable number.

163494077 is a deficient number, since it is larger than the sum of its proper divisors (1).

163494077 is an equidigital number, since it uses as much as digits as its factorization.

163494077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 163494077 is about 12786.4802428190. The cubic root of 163494077 is about 546.8069274160.

The spelling of 163494077 in words is "one hundred sixty-three million, four hundred ninety-four thousand, seventy-seven".