69948161 has 2 divisors, whose sum is σ = 69948162. Its totient is φ = 69948160.

The previous prime is 69948127. The next prime is 69948163. The reversal of 69948161 is 16184996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69639025 + 309136 = 8345^2 + 556^2 .

It is a cyclic number.

It is not a de Polignac number, because 69948161 - 2⁶ = 69948097 is a prime.

Together with 69948163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69948163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34974080 + 34974081.

It is an arithmetic number, because the mean of its divisors is an integer number (34974081).

Almost surely, 2^69948161 is an apocalyptic number.

It is an amenable number.

69948161 is a deficient number, since it is larger than the sum of its proper divisors (1).

69948161 is an equidigital number, since it uses as much as digits as its factorization.

69948161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 44.

The square root of 69948161 is about 8363.5017187778. The cubic root of 69948161 is about 412.0267699481.

The spelling of 69948161 in words is "sixty-nine million, nine hundred forty-eight thousand, one hundred sixty-one".