109299825 has 18 divisors (see below), whose sum is σ = 195768534. Its totient is φ = 58293120.

The previous prime is 109299823. The next prime is 109299871. The reversal of 109299825 is 528992901.

It can be written as a sum of positive squares in 3 ways, for example, as 4524129 + 104775696 = 2127^2 + 10236^2 .

It is not a de Polignac number, because 109299825 - 2¹ = 109299823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (109299821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 242664 + ... + 243113.

Almost surely, 2^109299825 is an apocalyptic number.

109299825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109299825 is a deficient number, since it is larger than the sum of its proper divisors (86468709).

109299825 is a wasteful number, since it uses less digits than its factorization.

109299825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485793 (or 485785 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 109299825 is about 10454.6556614745. The cubic root of 109299825 is about 478.1232051708.

The spelling of 109299825 in words is "one hundred nine million, two hundred ninety-nine thousand, eight hundred twenty-five".