102802225 has 6 divisors (see below), whose sum is σ = 127474790. Its totient is φ = 82241760.

The previous prime is 102802201. The next prime is 102802237. The reversal of 102802225 is 522208201.

It can be written as a sum of positive squares in 3 ways, for example, as 1437601 + 101364624 = 1199^2 + 10068^2 .

It is not a de Polignac number, because 102802225 - 2¹³ = 102794033 is a prime.

It is a super-3 number, since 3×102802225³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102802196 and 102802205.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2056020 + ... + 2056069.

Almost surely, 2^102802225 is an apocalyptic number.

It is an amenable number.

102802225 is a deficient number, since it is larger than the sum of its proper divisors (24672565).

102802225 is an equidigital number, since it uses as much as digits as its factorization.

102802225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112099 (or 4112094 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 102802225 is about 10139.1432083781. The cubic root of 102802225 is about 468.4545966926.

The spelling of 102802225 in words is "one hundred two million, eight hundred two thousand, two hundred twenty-five".