109012959025 has 6 divisors (see below), whose sum is σ = 135176069222. Its totient is φ = 87210367200.

The previous prime is 109012958969. The next prime is 109012959053. The reversal of 109012959025 is 520959210901.

It can be written as a sum of positive squares in 3 ways, for example, as 1375816464 + 107637142561 = 37092^2 + 328081^2 .

It is a de Polignac number, because none of the positive numbers 2^k-109012959025 is a prime.

It is a Duffinian number.

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, 2180259156 + ... + 2180259205.

Almost surely, 2^109012959025 is an apocalyptic number.

It is an amenable number.

109012959025 is a deficient number, since it is larger than the sum of its proper divisors (26163110197).

109012959025 is an equidigital number, since it uses as much as digits as its factorization.

109012959025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360518371 (or 4360518366 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 43.

The spelling of 109012959025 in words is "one hundred nine billion, twelve million, nine hundred fifty-nine thousand, twenty-five".