225102069 has 12 divisors (see below), whose sum is σ = 325506636. Its totient is φ = 149902272.

The previous prime is 225102061. The next prime is 225102091. The reversal of 225102069 is 960201522.

It can be written as a sum of positive squares in 2 ways, for example, as 4223025 + 220879044 = 2055^2 + 14862^2 .

It is not a de Polignac number, because 225102069 - 2³ = 225102061 is a prime.

It is a super-2 number, since 2×225102069² = 101341882936161522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225102061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4914 + ... + 21779.

It is an arithmetic number, because the mean of its divisors is an integer number (27125553).

Almost surely, 2^225102069 is an apocalyptic number.

It is an amenable number.

225102069 is a deficient number, since it is larger than the sum of its proper divisors (100404567).

225102069 is a wasteful number, since it uses less digits than its factorization.

225102069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27636 (or 27633 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 225102069 is about 15003.4019142327. The cubic root of 225102069 is about 608.3121566574.

The spelling of 225102069 in words is "two hundred twenty-five million, one hundred two thousand, sixty-nine".