109448513 has 6 divisors (see below), whose sum is σ = 114414594. Its totient is φ = 104689376.

The previous prime is 109448509. The next prime is 109448527. The reversal of 109448513 is 315844901.

It can be written as a sum of positive squares in only one way, i.e., 86341264 + 23107249 = 9292^2 + 4807^2 .

It is not a de Polignac number, because 109448513 - 2² = 109448509 is a prime.

It is a super-2 number, since 2×109448513² = 23957953995822338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109448543) 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, 102920 + ... + 103977.

It is an arithmetic number, because the mean of its divisors is an integer number (19069099).

Almost surely, 2^109448513 is an apocalyptic number.

It is an amenable number.

109448513 is a deficient number, since it is larger than the sum of its proper divisors (4966081).

109448513 is an equidigital number, since it uses as much as digits as its factorization.

109448513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206943 (or 206920 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 109448513 is about 10461.7643349485. The cubic root of 109448513 is about 478.3399147911.

The spelling of 109448513 in words is "one hundred nine million, four hundred forty-eight thousand, five hundred thirteen".