109257249 has 8 divisors (see below), whose sum is σ = 154245600. Its totient is φ = 68553536.

The previous prime is 109257241. The next prime is 109257257. The reversal of 109257249 is 942752901.

It is an interprime number because it is at equal distance from previous prime (109257241) and next prime (109257257).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109257249 - 2³ = 109257241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109257241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071099 + ... + 1071200.

It is an arithmetic number, because the mean of its divisors is an integer number (19280700).

Almost surely, 2^109257249 is an apocalyptic number.

It is an amenable number.

109257249 is a deficient number, since it is larger than the sum of its proper divisors (44988351).

109257249 is a wasteful number, since it uses less digits than its factorization.

109257249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142319.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 109257249 is about 10452.6192411280. The cubic root of 109257249 is about 478.0611153570.

The spelling of 109257249 in words is "one hundred nine million, two hundred fifty-seven thousand, two hundred forty-nine".