169648361 has 2 divisors, whose sum is σ = 169648362. Its totient is φ = 169648360.

The previous prime is 169648343. The next prime is 169648429. The reversal of 169648361 is 163846961.

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., 103144336 + 66504025 = 10156^2 + 8155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169648361 is a prime.

It is not a weakly prime, because it can be changed into another prime (169648331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84824180 + 84824181.

It is an arithmetic number, because the mean of its divisors is an integer number (84824181).

Almost surely, 2^169648361 is an apocalyptic number.

It is an amenable number.

169648361 is a deficient number, since it is larger than the sum of its proper divisors (1).

169648361 is an equidigital number, since it uses as much as digits as its factorization.

169648361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 169648361 is about 13024.9130899212. The cubic root of 169648361 is about 553.5836091008.

The spelling of 169648361 in words is "one hundred sixty-nine million, six hundred forty-eight thousand, three hundred sixty-one".