102544913 has 4 divisors (see below), whose sum is σ = 102568500. Its totient is φ = 102521328.

The previous prime is 102544903. The next prime is 102544921. The reversal of 102544913 is 319445201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38031889 + 64513024 = 6167^2 + 8032^2 .

It is a cyclic number.

It is not a de Polignac number, because 102544913 - 2²⁰ = 101496337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102544903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170 + ... + 14667.

It is an arithmetic number, because the mean of its divisors is an integer number (25642125).

Almost surely, 2^102544913 is an apocalyptic number.

It is an amenable number.

102544913 is a deficient number, since it is larger than the sum of its proper divisors (23587).

102544913 is an equidigital number, since it uses as much as digits as its factorization.

102544913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23586.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 102544913 is about 10126.4462177014. The cubic root of 102544913 is about 468.0634258524.

The spelling of 102544913 in words is "one hundred two million, five hundred forty-four thousand, nine hundred thirteen".