165952047 has 4 divisors (see below), whose sum is σ = 221269400. Its totient is φ = 110634696.

The previous prime is 165952037. The next prime is 165952081. The reversal of 165952047 is 740259561.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 165952047 - 2⁸ = 165951791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165951996 and 165952014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165952037) 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, 27658672 + ... + 27658677.

It is an arithmetic number, because the mean of its divisors is an integer number (55317350).

Almost surely, 2^165952047 is an apocalyptic number.

165952047 is a deficient number, since it is larger than the sum of its proper divisors (55317353).

165952047 is an equidigital number, since it uses as much as digits as its factorization.

165952047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55317352.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 165952047 is about 12882.2376550039. The cubic root of 165952047 is about 549.5335405920.

The spelling of 165952047 in words is "one hundred sixty-five million, nine hundred fifty-two thousand, forty-seven".