247106 has 4 divisors (see below), whose sum is σ = 370662. Its totient is φ = 123552.

The previous prime is 247099. The next prime is 247141. The reversal of 247106 is 601742.

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

It can be written as a sum of positive squares in only one way, i.e., 235225 + 11881 = 485^2 + 109^2 .

It is a super-2 number, since 2×247106² = 122122750472, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61775 + ... + 61778.

2²⁴⁷¹⁰⁶ is an apocalyptic number.

247106 is a deficient number, since it is larger than the sum of its proper divisors (123556).

247106 is a wasteful number, since it uses less digits than its factorization.

247106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123555.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 247106 is about 497.0975759345. The cubic root of 247106 is about 62.7520276801.

Adding to 247106 its reverse (601742), we get a palindrome (848848).

It can be divided in two parts, 247 and 106, that added together give a palindrome (353).

The spelling of 247106 in words is "two hundred forty-seven thousand, one hundred six".