109250513 has 18 divisors (see below), whose sum is σ = 118668546. Its totient is φ = 100558944.

The previous prime is 109250509. The next prime is 109250539. The reversal of 109250513 is 315052901.

It can be written as a sum of positive squares in only one way, i.e., 96491329 + 12759184 = 9823^2 + 3572^2 .

It is not a de Polignac number, because 109250513 - 2² = 109250509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109250593) 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, 797381 + ... + 797517.

It is an arithmetic number, because the mean of its divisors is an integer number (6592697).

Almost surely, 2^109250513 is an apocalyptic number.

It is an amenable number.

109250513 is a deficient number, since it is larger than the sum of its proper divisors (9418033).

109250513 is an equidigital number, since it uses as much as digits as its factorization.

109250513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 109250513 is about 10452.2970202726. The cubic root of 109250513 is about 478.0512905753.

The spelling of 109250513 in words is "one hundred nine million, two hundred fifty thousand, five hundred thirteen".