162680549 has 2 divisors, whose sum is σ = 162680550. Its totient is φ = 162680548.

The previous prime is 162680537. The next prime is 162680597. The reversal of 162680549 is 945086261.

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., 119028100 + 43652449 = 10910^2 + 6607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162680549 is a prime.

It is a super-2 number, since 2×162680549² = 52929922045882802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162680509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81340274 + 81340275.

It is an arithmetic number, because the mean of its divisors is an integer number (81340275).

Almost surely, 2^162680549 is an apocalyptic number.

It is an amenable number.

162680549 is a deficient number, since it is larger than the sum of its proper divisors (1).

162680549 is an equidigital number, since it uses as much as digits as its factorization.

162680549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 162680549 is about 12754.6285324191. The cubic root of 162680549 is about 545.8984691817.

The spelling of 162680549 in words is "one hundred sixty-two million, six hundred eighty thousand, five hundred forty-nine".