1202165171 has 4 divisors (see below), whose sum is σ = 1209822432. Its totient is φ = 1194507912.

The previous prime is 1202165087. The next prime is 1202165197. The reversal of 1202165171 is 1715612021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202165171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202165171.

It is not an unprimeable number, because it can be changed into a prime (1202165071) 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, 3828395 + ... + 3828708.

It is an arithmetic number, because the mean of its divisors is an integer number (302455608).

Almost surely, 2^1202165171 is an apocalyptic number.

1202165171 is a deficient number, since it is larger than the sum of its proper divisors (7657261).

1202165171 is an equidigital number, since it uses as much as digits as its factorization.

1202165171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7657260.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1202165171 is about 34672.2536187079. The cubic root of 1202165171 is about 1063.2973067090.

Adding to 1202165171 its reverse (1715612021), we get a palindrome (2917777192).

The spelling of 1202165171 in words is "one billion, two hundred two million, one hundred sixty-five thousand, one hundred seventy-one".