1078605161 has 2 divisors, whose sum is σ = 1078605162. Its totient is φ = 1078605160.

The previous prime is 1078605139. The next prime is 1078605193. The reversal of 1078605161 is 1615068701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 586608400 + 491996761 = 24220^2 + 22181^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078605161 - 2⁶ = 1078605097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1078605461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539302580 + 539302581.

It is an arithmetic number, because the mean of its divisors is an integer number (539302581).

Almost surely, 2^1078605161 is an apocalyptic number.

It is an amenable number.

1078605161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078605161 is an equidigital number, since it uses as much as digits as its factorization.

1078605161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 1078605161 is about 32842.1247942334. The cubic root of 1078605161 is about 1025.5436849145.

The spelling of 1078605161 in words is "one billion, seventy-eight million, six hundred five thousand, one hundred sixty-one".