109872513 has 12 divisors (see below), whose sum is σ = 168040548. Its totient is φ = 68939520.

The previous prime is 109872487. The next prime is 109872523. The reversal of 109872513 is 315278901.

It can be written as a sum of positive squares in 2 ways, for example, as 98962704 + 10909809 = 9948^2 + 3303^2 .

It is not a de Polignac number, because 109872513 - 2¹⁴ = 109856129 is a prime.

It is a super-2 number, since 2×109872513² = 24143938225870338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109872523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358908 + ... + 359213.

It is an arithmetic number, because the mean of its divisors is an integer number (14003379).

Almost surely, 2^109872513 is an apocalyptic number.

It is an amenable number.

109872513 is a deficient number, since it is larger than the sum of its proper divisors (58168035).

109872513 is a wasteful number, since it uses less digits than its factorization.

109872513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718144 (or 718141 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 109872513 is about 10482.0090154512. The cubic root of 109872513 is about 478.9568099853.

The spelling of 109872513 in words is "one hundred nine million, eight hundred seventy-two thousand, five hundred thirteen".