165075247 has 2 divisors, whose sum is σ = 165075248. Its totient is φ = 165075246.

The previous prime is 165075227. The next prime is 165075257. The reversal of 165075247 is 742570561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165075247 - 2²³ = 156686639 is a prime.

It is a super-2 number, since 2×165075247² = 54499674344222018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165075227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82537623 + 82537624.

It is an arithmetic number, because the mean of its divisors is an integer number (82537624).

Almost surely, 2^165075247 is an apocalyptic number.

165075247 is a deficient number, since it is larger than the sum of its proper divisors (1).

165075247 is an equidigital number, since it uses as much as digits as its factorization.

165075247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 165075247 is about 12848.1612303084. The cubic root of 165075247 is about 548.5640193879.

The spelling of 165075247 in words is "one hundred sixty-five million, seventy-five thousand, two hundred forty-seven".