102970225 has 6 divisors (see below), whose sum is σ = 127683110. Its totient is φ = 82376160.

The previous prime is 102970199. The next prime is 102970243. The reversal of 102970225 is 522079201.

It can be written as a sum of positive squares in 3 ways, for example, as 9345249 + 93624976 = 3057^2 + 9676^2 .

It is not a de Polignac number, because 102970225 - 2⁵ = 102970193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102970193 and 102970202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2059380 + ... + 2059429.

Almost surely, 2^102970225 is an apocalyptic number.

It is an amenable number.

102970225 is a deficient number, since it is larger than the sum of its proper divisors (24712885).

102970225 is an equidigital number, since it uses as much as digits as its factorization.

102970225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4118819 (or 4118814 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 102970225 is about 10147.4245501014. The cubic root of 102970225 is about 468.7096415624.

The spelling of 102970225 in words is "one hundred two million, nine hundred seventy thousand, two hundred twenty-five".