165127247 has 4 divisors (see below), whose sum is σ = 170821320. Its totient is φ = 159433176.

The previous prime is 165127243. The next prime is 165127279. The reversal of 165127247 is 742721561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742721561 = 107 ⋅6941323.

It is a cyclic number.

It is not a de Polignac number, because 165127247 - 2² = 165127243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165127243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2846993 + ... + 2847050.

It is an arithmetic number, because the mean of its divisors is an integer number (42705330).

Almost surely, 2^165127247 is an apocalyptic number.

165127247 is a deficient number, since it is larger than the sum of its proper divisors (5694073).

165127247 is an equidigital number, since it uses as much as digits as its factorization.

165127247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694072.

The product of its digits is 23520, while the sum is 35.

The square root of 165127247 is about 12850.1847068437. The cubic root of 165127247 is about 548.6216139997.

The spelling of 165127247 in words is "one hundred sixty-five million, one hundred twenty-seven thousand, two hundred forty-seven".