70667161 has 2 divisors, whose sum is σ = 70667162. Its totient is φ = 70667160.

The previous prime is 70667153. The next prime is 70667243. The reversal of 70667161 is 16176607.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43824400 + 26842761 = 6620^2 + 5181^2 .

It is a cyclic number.

It is not a de Polignac number, because 70667161 - 2³ = 70667153 is a prime.

It is not a weakly prime, because it can be changed into another prime (70667101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35333580 + 35333581.

It is an arithmetic number, because the mean of its divisors is an integer number (35333581).

Almost surely, 2^70667161 is an apocalyptic number.

It is an amenable number.

70667161 is a deficient number, since it is larger than the sum of its proper divisors (1).

70667161 is an equidigital number, since it uses as much as digits as its factorization.

70667161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70667161 is about 8406.3762109484. The cubic root of 70667161 is about 413.4337069073.

The spelling of 70667161 in words is "seventy million, six hundred sixty-seven thousand, one hundred sixty-one".