102202306 has 4 divisors (see below), whose sum is σ = 153303462. Its totient is φ = 51101152.

The previous prime is 102202301. The next prime is 102202313. The reversal of 102202306 is 603202201.

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., 100821681 + 1380625 = 10041^2 + 1175^2 .

It is a super-2 number, since 2×102202306² = 20890622703435272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102202306.

It is not an unprimeable number, because it can be changed into a prime (102202301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550575 + ... + 25550578.

Almost surely, 2^102202306 is an apocalyptic number.

102202306 is a deficient number, since it is larger than the sum of its proper divisors (51101156).

102202306 is an equidigital number, since it uses as much as digits as its factorization.

102202306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51101155.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102202306 is about 10109.5156164873. The cubic root of 102202306 is about 467.5415708408.

Adding to 102202306 its reverse (603202201), we get a palindrome (705404507).

The spelling of 102202306 in words is "one hundred two million, two hundred two thousand, three hundred six".