99023513 has 4 divisors (see below), whose sum is σ = 99043428. Its totient is φ = 99003600.

The previous prime is 99023489. The next prime is 99023563. The reversal of 99023513 is 31532099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31532099 = 101 ⋅312199.

It can be written as a sum of positive squares in 2 ways, for example, as 97377424 + 1646089 = 9868^2 + 1283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99023513 is a prime.

It is a super-2 number, since 2×99023513² = 19611312253722338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99023513.

It is not an unprimeable number, because it can be changed into a prime (99023563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4463 + ... + 14763.

It is an arithmetic number, because the mean of its divisors is an integer number (24760857).

Almost surely, 2^99023513 is an apocalyptic number.

It is an amenable number.

99023513 is a deficient number, since it is larger than the sum of its proper divisors (19915).

99023513 is a wasteful number, since it uses less digits than its factorization.

99023513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19914.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 99023513 is about 9951.0558736247. The cubic root of 99023513 is about 462.6431218127.

The spelling of 99023513 in words is "ninety-nine million, twenty-three thousand, five hundred thirteen".