445102102 has 4 divisors (see below), whose sum is σ = 667653156. Its totient is φ = 222551050.

The previous prime is 445102093. The next prime is 445102111. The reversal of 445102102 is 201201544.

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

It is an interprime number because it is at equal distance from previous prime (445102093) and next prime (445102111).

It is a self number, because there is not a number n which added to its sum of digits gives 445102102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111275524 + ... + 111275527.

It is an arithmetic number, because the mean of its divisors is an integer number (166913289).

Almost surely, 2^445102102 is an apocalyptic number.

445102102 is a deficient number, since it is larger than the sum of its proper divisors (222551054).

445102102 is a wasteful number, since it uses less digits than its factorization.

445102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222551053.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 445102102 is about 21097.4430204231. The cubic root of 445102102 is about 763.5190578425.

Adding to 445102102 its reverse (201201544), we get a palindrome (646303646).

The spelling of 445102102 in words is "four hundred forty-five million, one hundred two thousand, one hundred two".