169612061 has 2 divisors, whose sum is σ = 169612062. Its totient is φ = 169612060.

The previous prime is 169612007. The next prime is 169612087. The reversal of 169612061 is 160216961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115132900 + 54479161 = 10730^2 + 7381^2 .

It is a cyclic number.

It is not a de Polignac number, because 169612061 - 2⁶ = 169611997 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 (169611061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84806030 + 84806031.

It is an arithmetic number, because the mean of its divisors is an integer number (84806031).

Almost surely, 2^169612061 is an apocalyptic number.

It is an amenable number.

169612061 is a deficient number, since it is larger than the sum of its proper divisors (1).

169612061 is an equidigital number, since it uses as much as digits as its factorization.

169612061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 169612061 is about 13023.5195319852. The cubic root of 169612061 is about 553.5441224860.

The spelling of 169612061 in words is "one hundred sixty-nine million, six hundred twelve thousand, sixty-one".