173142727 has 2 divisors, whose sum is σ = 173142728. Its totient is φ = 173142726.

The previous prime is 173142677. The next prime is 173142743. The reversal of 173142727 is 727241371.

It is a strong prime.

It is an emirp because it is prime and its reverse (727241371) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173142727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 173142692 and 173142701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173142797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86571363 + 86571364.

It is an arithmetic number, because the mean of its divisors is an integer number (86571364).

Almost surely, 2^173142727 is an apocalyptic number.

173142727 is a deficient number, since it is larger than the sum of its proper divisors (1).

173142727 is an equidigital number, since it uses as much as digits as its factorization.

173142727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 34.

The square root of 173142727 is about 13158.3709858022. The cubic root of 173142727 is about 557.3586570840.

The spelling of 173142727 in words is "one hundred seventy-three million, one hundred forty-two thousand, seven hundred twenty-seven".