109912025 has 6 divisors (see below), whose sum is σ = 136290942. Its totient is φ = 87929600.

The previous prime is 109912007. The next prime is 109912027. The reversal of 109912025 is 520219901.

It can be written as a sum of positive squares in 3 ways, for example, as 21307456 + 88604569 = 4616^2 + 9413^2 .

It is a de Polignac number, because none of the positive numbers 2^k-109912025 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109912027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2198216 + ... + 2198265.

It is an arithmetic number, because the mean of its divisors is an integer number (22715157).

Almost surely, 2^109912025 is an apocalyptic number.

It is an amenable number.

109912025 is a deficient number, since it is larger than the sum of its proper divisors (26378917).

109912025 is an equidigital number, since it uses as much as digits as its factorization.

109912025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396491 (or 4396486 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 109912025 is about 10483.8935992312. The cubic root of 109912025 is about 479.0142167406.

The spelling of 109912025 in words is "one hundred nine million, nine hundred twelve thousand, twenty-five".