128414225 has 12 divisors (see below), whose sum is σ = 160252764. Its totient is φ = 102073920.

The previous prime is 128414203. The next prime is 128414239. The reversal of 128414225 is 522414821.

It is a Cunningham number, because it is equal to 11332²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 128414224 = 1^2 + 11332^2 .

It is not a de Polignac number, because 128414225 - 2⁸ = 128413969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12434 + ... + 20283.

It is an arithmetic number, because the mean of its divisors is an integer number (13354397).

Almost surely, 2^128414225 is an apocalyptic number.

It is an amenable number.

128414225 is a deficient number, since it is larger than the sum of its proper divisors (31838539).

128414225 is a wasteful number, since it uses less digits than its factorization.

128414225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32884 (or 32879 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 128414225 is about 11332.0000441228. Note that the first 4 decimals coincide. The cubic root of 128414225 is about 504.5114708304.

The spelling of 128414225 in words is "one hundred twenty-eight million, four hundred fourteen thousand, two hundred twenty-five".