170148551 has 2 divisors, whose sum is σ = 170148552. Its totient is φ = 170148550.

The previous prime is 170148493. The next prime is 170148557. The reversal of 170148551 is 155841071.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 170148551 - 2⁶ = 170148487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170148557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85074275 + 85074276.

It is an arithmetic number, because the mean of its divisors is an integer number (85074276).

Almost surely, 2^170148551 is an apocalyptic number.

170148551 is a deficient number, since it is larger than the sum of its proper divisors (1).

170148551 is an equidigital number, since it uses as much as digits as its factorization.

170148551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 170148551 is about 13044.1002372720. The cubic root of 170148551 is about 554.1271359092.

The spelling of 170148551 in words is "one hundred seventy million, one hundred forty-eight thousand, five hundred fifty-one".