109426025 has 12 divisors (see below), whose sum is σ = 143670492. Its totient is φ = 82391040.

The previous prime is 109425989. The next prime is 109426049. The reversal of 109426025 is 520624901.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9665881 + 99760144 = 3109^2 + 9988^2 .

It is not a de Polignac number, because 109426025 - 2¹⁸ = 109163881 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, 128312 + ... + 129161.

It is an arithmetic number, because the mean of its divisors is an integer number (11972541).

Almost surely, 2^109426025 is an apocalyptic number.

It is an amenable number.

109426025 is a deficient number, since it is larger than the sum of its proper divisors (34244467).

109426025 is a wasteful number, since it uses less digits than its factorization.

109426025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257500 (or 257495 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 109426025 is about 10460.6895088230. The cubic root of 109426025 is about 478.3071516086.

The spelling of 109426025 in words is "one hundred nine million, four hundred twenty-six thousand, twenty-five".