83154161 has 2 divisors, whose sum is σ = 83154162. Its totient is φ = 83154160.

The previous prime is 83154103. The next prime is 83154257. The reversal of 83154161 is 16145138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57093136 + 26061025 = 7556^2 + 5105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83154161 is a prime.

It is a super-2 number, since 2×83154161² = 13829228983227842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (83154061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41577080 + 41577081.

It is an arithmetic number, because the mean of its divisors is an integer number (41577081).

Almost surely, 2^83154161 is an apocalyptic number.

It is an amenable number.

83154161 is a deficient number, since it is larger than the sum of its proper divisors (1).

83154161 is an equidigital number, since it uses as much as digits as its factorization.

83154161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 83154161 is about 9118.8903381936. The cubic root of 83154161 is about 436.4769648448.

Adding to 83154161 its reverse (16145138), we get a palindrome (99299299).

The spelling of 83154161 in words is "eighty-three million, one hundred fifty-four thousand, one hundred sixty-one".