109291425 has 12 divisors (see below), whose sum is σ = 180695280. Its totient is φ = 58288720.

The previous prime is 109291421. The next prime is 109291433. The reversal of 109291425 is 524192901.

It is not a de Polignac number, because 109291425 - 2² = 109291421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109291421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 728535 + ... + 728684.

It is an arithmetic number, because the mean of its divisors is an integer number (15057940).

Almost surely, 2^109291425 is an apocalyptic number.

109291425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109291425 is a deficient number, since it is larger than the sum of its proper divisors (71403855).

109291425 is a wasteful number, since it uses less digits than its factorization.

109291425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457232 (or 1457227 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 109291425 is about 10454.2539188600. The cubic root of 109291425 is about 478.1109564844.

The spelling of 109291425 in words is "one hundred nine million, two hundred ninety-one thousand, four hundred twenty-five".