102544213 has 4 divisors (see below), whose sum is σ = 103064940. Its totient is φ = 102023488.

The previous prime is 102544171. The next prime is 102544217. The reversal of 102544213 is 312445201.

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 83942244 + 18601969 = 9162^2 + 4313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102544213 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 (102544217) 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, 260068 + ... + 260461.

It is an arithmetic number, because the mean of its divisors is an integer number (25766235).

Almost surely, 2^102544213 is an apocalyptic number.

It is an amenable number.

102544213 is a deficient number, since it is larger than the sum of its proper divisors (520727).

102544213 is an equidigital number, since it uses as much as digits as its factorization.

102544213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520726.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 102544213 is about 10126.4116546781. The cubic root of 102544213 is about 468.0623608064.

Adding to 102544213 its reverse (312445201), we get a palindrome (414989414).

The spelling of 102544213 in words is "one hundred two million, five hundred forty-four thousand, two hundred thirteen".