17142977 has 2 divisors, whose sum is σ = 17142978. Its totient is φ = 17142976.

The previous prime is 17142949. The next prime is 17142991. The reversal of 17142977 is 77924171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17106496 + 36481 = 4136^2 + 191^2 .

It is a cyclic number.

It is not a de Polignac number, because 17142977 - 2¹⁰ = 17141953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17142977.

It is not a weakly prime, because it can be changed into another prime (17142677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8571488 + 8571489.

It is an arithmetic number, because the mean of its divisors is an integer number (8571489).

Almost surely, 2^17142977 is an apocalyptic number.

It is an amenable number.

17142977 is a deficient number, since it is larger than the sum of its proper divisors (1).

17142977 is an equidigital number, since it uses as much as digits as its factorization.

17142977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 38.

The square root of 17142977 is about 4140.4078301539. The cubic root of 17142977 is about 257.8469988018.

The spelling of 17142977 in words is "seventeen million, one hundred forty-two thousand, nine hundred seventy-seven".